ReactOS 0.4.16-dev-297-gc569aee
message.c File Reference
#include <win32k.h>
#include <dde.h>
Include dependency graph for message.c:

Go to the source code of this file.

Classes

struct  tagMSGMEMORY
 

Macros

#define PM_BADMSGFLAGS   ~((QS_RAWINPUT << 16)|PM_QS_SENDMESSAGE|PM_QS_PAINT|PM_QS_POSTMESSAGE|PM_QS_INPUT|PM_NOYIELD|PM_REMOVE)
 
#define SET(msg)   (1 << ((msg) & 31))
 
#define MMS_SIZE_WPARAM   -1
 
#define MMS_SIZE_WPARAMWCHAR   -2
 
#define MMS_SIZE_LPARAMSZ   -3
 
#define MMS_SIZE_SPECIAL   -4
 
#define MMS_FLAG_READ   0x01
 
#define MMS_FLAG_WRITE   0x02
 
#define MMS_FLAG_READWRITE   (MMS_FLAG_READ | MMS_FLAG_WRITE)
 
#define INFINITE   0xFFFFFFFF
 
#define WAIT_FAILED   ((DWORD)0xFFFFFFFF)
 

Typedefs

typedef struct tagMSGMEMORY MSGMEMORY
 
typedef struct tagMSGMEMORYPMSGMEMORY
 

Functions

 DBG_DEFAULT_CHANNEL (UserMsg)
 
static INT PosInArray (_In_ PCWSTR String)
 
NTSTATUS FASTCALL IntInitMessageImpl (VOID)
 
NTSTATUS FASTCALL IntCleanupMessageImpl (VOID)
 
static int is_pointer_message (UINT message, WPARAM wparam)
 
static PMSGMEMORY FASTCALL FindMsgMemory (UINT Msg)
 
static UINT FASTCALL MsgMemorySize (PMSGMEMORY MsgMemoryEntry, WPARAM wParam, LPARAM lParam)
 
UINT lParamMemorySize (UINT Msg, WPARAM wParam, LPARAM lParam)
 
static NTSTATUS PackParam (LPARAM *lParamPacked, UINT Msg, WPARAM wParam, LPARAM lParam, BOOL NonPagedPoolNeeded)
 
static NTSTATUS UnpackParam (LPARAM lParamPacked, UINT Msg, WPARAM wParam, LPARAM lParam, BOOL NonPagedPoolUsed)
 
static NTSTATUS FASTCALL CopyMsgToKernelMem (MSG *KernelModeMsg, MSG *UserModeMsg, PMSGMEMORY MsgMemoryEntry)
 
static NTSTATUS FASTCALL CopyMsgToUserMem (MSG *UserModeMsg, MSG *KernelModeMsg)
 
VOID FASTCALL IdlePing (VOID)
 
VOID FASTCALL IdlePong (VOID)
 
static BOOL is_message_broadcastable (UINT msg)
 
UINT FASTCALL GetWakeMask (UINT first, UINT last)
 
BOOL FASTCALL IntMsgCreateStructW (PWND Window, CREATESTRUCTW *pCsw, CREATESTRUCTW *Cs, PVOID *ppszClass, PVOID *ppszName)
 
static VOID FASTCALL IntCallWndProc (PWND Window, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
 
static VOID FASTCALL IntCallWndProcRet (PWND Window, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, LRESULT *uResult)
 
static LRESULT handle_internal_message (PWND pWnd, UINT msg, WPARAM wparam, LPARAM lparam)
 
static LRESULT handle_internal_events (PTHREADINFO pti, PWND pWnd, DWORD dwQEvent, LONG_PTR ExtraInfo, PMSG pMsg)
 
LRESULT FASTCALL IntDispatchMessage (PMSG pMsg)
 
BOOL APIENTRY co_IntPeekMessage (PMSG Msg, PWND Window, UINT MsgFilterMin, UINT MsgFilterMax, UINT RemoveMsg, LONG_PTR *ExtraInfo, BOOL bGMSG)
 
BOOL FASTCALL co_IntWaitMessage (PWND Window, UINT MsgFilterMin, UINT MsgFilterMax)
 
BOOL APIENTRY co_IntGetPeekMessage (PMSG pMsg, HWND hWnd, UINT MsgFilterMin, UINT MsgFilterMax, UINT RemoveMsg, BOOL bGMSG)
 
BOOL FASTCALL UserPostThreadMessage (PTHREADINFO pti, UINT Msg, WPARAM wParam, LPARAM lParam)
 
PTHREADINFO FASTCALL IntSendTo (PWND Window, PTHREADINFO ptiCur, UINT Msg)
 
BOOL FASTCALL UserPostMessage (HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam)
 
LRESULT FASTCALL co_IntSendMessage (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
 
static LRESULT FASTCALL co_IntSendMessageTimeoutSingle (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, UINT uFlags, UINT uTimeout, ULONG_PTR *uResult)
 
LRESULT FASTCALL co_IntSendMessageTimeout (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, UINT uFlags, UINT uTimeout, ULONG_PTR *uResult)
 
LRESULT FASTCALL co_IntSendMessageNoWait (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
 
LRESULT FASTCALL co_IntSendMessageWithCallBack (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, SENDASYNCPROC CompletionCallback, ULONG_PTR CompletionCallbackContext, ULONG_PTR *uResult)
 
static LRESULT FASTCALL co_IntDoSendMessage (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, PDOSENDMESSAGE dsm)
 
BOOL FASTCALL UserSendNotifyMessage (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
 
DWORD APIENTRY IntGetQueueStatus (DWORD Changes)
 
BOOL APIENTRY IntInitMessagePumpHook (VOID)
 
BOOL APIENTRY IntUninitMessagePumpHook (VOID)
 
BOOL FASTCALL IntCallMsgFilter (LPMSG lpmsg, INT code)
 
BOOL APIENTRY NtUserDragDetect (HWND hWnd, POINT pt)
 
BOOL APIENTRY NtUserPostMessage (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
 
BOOL APIENTRY NtUserPostThreadMessage (DWORD idThread, UINT Msg, WPARAM wParam, LPARAM lParam)
 
BOOL APIENTRY NtUserWaitMessage (VOID)
 
BOOL APIENTRY NtUserGetMessage (PMSG pMsg, HWND hWnd, UINT MsgFilterMin, UINT MsgFilterMax)
 
BOOL APIENTRY NtUserPeekMessage (PMSG pMsg, HWND hWnd, UINT MsgFilterMin, UINT MsgFilterMax, UINT RemoveMsg)
 
BOOL APIENTRY NtUserCallMsgFilter (LPMSG lpmsg, INT code)
 
LRESULT APIENTRY NtUserDispatchMessage (PMSG UnsafeMsgInfo)
 
BOOL APIENTRY NtUserTranslateMessage (LPMSG lpMsg, UINT flags)
 
LRESULT APIENTRY ScrollBarWndProc (HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam)
 
BOOL APIENTRY NtUserMessageCall (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, ULONG_PTR ResultInfo, DWORD dwType, BOOL Ansi)
 
DWORD APIENTRY NtUserWaitForInputIdle (IN HANDLE hProcess, IN DWORD dwMilliseconds, IN BOOL bSharedWow)
 

Variables

WCHAR StrUserKernel [3][20] = {{L"intl"}, {L"Environment"}, {L"Policy"}}
 
static const unsigned int message_pointer_flags []
 
static MSGMEMORY g_MsgMemory []
 

Macro Definition Documentation

◆ INFINITE

#define INFINITE   0xFFFFFFFF

Definition at line 3111 of file message.c.

◆ MMS_FLAG_READ

#define MMS_FLAG_READ   0x01

Definition at line 132 of file message.c.

◆ MMS_FLAG_READWRITE

#define MMS_FLAG_READWRITE   (MMS_FLAG_READ | MMS_FLAG_WRITE)

Definition at line 134 of file message.c.

◆ MMS_FLAG_WRITE

#define MMS_FLAG_WRITE   0x02

Definition at line 133 of file message.c.

◆ MMS_SIZE_LPARAMSZ

#define MMS_SIZE_LPARAMSZ   -3

Definition at line 130 of file message.c.

◆ MMS_SIZE_SPECIAL

#define MMS_SIZE_SPECIAL   -4

Definition at line 131 of file message.c.

◆ MMS_SIZE_WPARAM

#define MMS_SIZE_WPARAM   -1

Definition at line 128 of file message.c.

◆ MMS_SIZE_WPARAMWCHAR

#define MMS_SIZE_WPARAMWCHAR   -2

Definition at line 129 of file message.c.

◆ PM_BADMSGFLAGS

#define PM_BADMSGFLAGS   ~((QS_RAWINPUT << 16)|PM_QS_SENDMESSAGE|PM_QS_PAINT|PM_QS_POSTMESSAGE|PM_QS_INPUT|PM_NOYIELD|PM_REMOVE)

Definition at line 14 of file message.c.

◆ SET

#define SET (   msg)    (1 << ((msg) & 31))

Definition at line 56 of file message.c.

◆ WAIT_FAILED

#define WAIT_FAILED   ((DWORD)0xFFFFFFFF)

Definition at line 3112 of file message.c.

Typedef Documentation

◆ MSGMEMORY

◆ PMSGMEMORY

Function Documentation

◆ co_IntDoSendMessage()

static LRESULT FASTCALL co_IntDoSendMessage ( HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam,
PDOSENDMESSAGE  dsm 
)
static

Definition at line 2004 of file message.c.

2009{
2012 PWND Window = NULL;
2013 MSG UserModeMsg, KernelModeMsg;
2014 PMSGMEMORY MsgMemoryEntry;
2015 PTHREADINFO ptiSendTo;
2016
2017 if (hWnd != HWND_BROADCAST && hWnd != HWND_TOPMOST)
2018 {
2020 if ( !Window )
2021 {
2022 return 0;
2023 }
2024 }
2025
2026 /* Check for an exiting window. */
2027 if (Window && Window->state & WNDS_DESTROYED)
2028 {
2029 ERR("co_IntDoSendMessage Window Exiting!\n");
2030 }
2031
2032 /* See if the current thread can handle this message */
2033 ptiSendTo = IntSendTo(Window, gptiCurrent, Msg);
2034
2035 // If broadcasting or sending to another thread, save the users data.
2036 if (!Window || ptiSendTo )
2037 {
2038 UserModeMsg.hwnd = hWnd;
2039 UserModeMsg.message = Msg;
2040 UserModeMsg.wParam = wParam;
2041 UserModeMsg.lParam = lParam;
2042 MsgMemoryEntry = FindMsgMemory(UserModeMsg.message);
2043 Status = CopyMsgToKernelMem(&KernelModeMsg, &UserModeMsg, MsgMemoryEntry);
2044 if (!NT_SUCCESS(Status))
2045 {
2047 return (dsm ? 0 : -1);
2048 }
2049 }
2050 else
2051 {
2052 KernelModeMsg.hwnd = hWnd;
2053 KernelModeMsg.message = Msg;
2054 KernelModeMsg.wParam = wParam;
2055 KernelModeMsg.lParam = lParam;
2056 }
2057
2058 if (!dsm)
2059 {
2060 Result = co_IntSendMessage( KernelModeMsg.hwnd,
2061 KernelModeMsg.message,
2062 KernelModeMsg.wParam,
2063 KernelModeMsg.lParam );
2064 }
2065 else
2066 {
2067 Result = co_IntSendMessageTimeout( KernelModeMsg.hwnd,
2068 KernelModeMsg.message,
2069 KernelModeMsg.wParam,
2070 KernelModeMsg.lParam,
2071 dsm->uFlags,
2072 dsm->uTimeout,
2073 &dsm->Result );
2074 }
2075
2076 if (!Window || ptiSendTo )
2077 {
2078 Status = CopyMsgToUserMem(&UserModeMsg, &KernelModeMsg);
2079 if (!NT_SUCCESS(Status))
2080 {
2082 return(dsm ? 0 : -1);
2083 }
2084 }
2085
2086 return (LRESULT)Result;
2087}
HWND hWnd
Definition: settings.c:17
LONG NTSTATUS
Definition: precomp.h:26
#define ERR(fmt,...)
Definition: precomp.h:57
WPARAM wParam
Definition: combotst.c:138
struct @1640 Msg[]
LPARAM lParam
Definition: combotst.c:139
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:33
#define ERROR_INVALID_PARAMETER
Definition: compat.h:101
Status
Definition: gdiplustypes.h:25
#define WNDS_DESTROYED
Definition: ntuser.h:636
PTHREADINFO gptiCurrent
Definition: ntuser.c:15
Definition: window.c:28
Definition: ntuser.h:694
ULONG_PTR Result
Definition: ntuser.h:2650
TW_UINT32 TW_UINT16 TW_UINT16 MSG
Definition: twain.h:1829
PWND FASTCALL UserGetWindowObject(HWND hWnd)
Definition: window.c:124
static NTSTATUS FASTCALL CopyMsgToKernelMem(MSG *KernelModeMsg, MSG *UserModeMsg, PMSGMEMORY MsgMemoryEntry)
Definition: message.c:451
PTHREADINFO FASTCALL IntSendTo(PWND Window, PTHREADINFO ptiCur, UINT Msg)
Definition: message.c:1381
LRESULT FASTCALL co_IntSendMessageTimeout(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, UINT uFlags, UINT uTimeout, ULONG_PTR *uResult)
Definition: message.c:1707
static PMSGMEMORY FASTCALL FindMsgMemory(UINT Msg)
Definition: message.c:168
static NTSTATUS FASTCALL CopyMsgToUserMem(MSG *UserModeMsg, MSG *KernelModeMsg)
Definition: message.c:536
LRESULT FASTCALL co_IntSendMessage(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
Definition: message.c:1495
ENGAPI VOID APIENTRY EngSetLastError(_In_ ULONG iError)
Definition: error.c:22
LONG_PTR LRESULT
Definition: windef.h:209
#define HWND_TOPMOST
Definition: winuser.h:1211
#define HWND_BROADCAST
Definition: winuser.h:1207
_At_(*)(_In_ PWSK_CLIENT Client, _In_opt_ PUNICODE_STRING NodeName, _In_opt_ PUNICODE_STRING ServiceName, _In_opt_ ULONG NameSpace, _In_opt_ GUID *Provider, _In_opt_ PADDRINFOEXW Hints, _Outptr_ PADDRINFOEXW *Result, _In_opt_ PEPROCESS OwningProcess, _In_opt_ PETHREAD OwningThread, _Inout_ PIRP Irp Result)(Mem)) NTSTATUS(WSKAPI *PFN_WSK_GET_ADDRESS_INFO
Definition: wsk.h:409

Referenced by NtUserMessageCall().

◆ co_IntGetPeekMessage()

BOOL APIENTRY co_IntGetPeekMessage ( PMSG  pMsg,
HWND  hWnd,
UINT  MsgFilterMin,
UINT  MsgFilterMax,
UINT  RemoveMsg,
BOOL  bGMSG 
)

Definition at line 1226 of file message.c.

1232{
1233 PWND Window;
1234 PTHREADINFO pti;
1235 BOOL Present = FALSE;
1237 LONG_PTR ExtraInfo = 0;
1238
1239 if ( hWnd == HWND_TOPMOST || hWnd == HWND_BROADCAST )
1240 hWnd = HWND_BOTTOM;
1241
1242 /* Validate input */
1243 if (hWnd && hWnd != HWND_BOTTOM)
1244 {
1246 {
1247 if (bGMSG)
1248 return -1;
1249 else
1250 return FALSE;
1251 }
1252 }
1253 else
1254 {
1255 Window = (PWND)hWnd;
1256 }
1257
1258 if (MsgFilterMax < MsgFilterMin)
1259 {
1260 MsgFilterMin = 0;
1261 MsgFilterMax = 0;
1262 }
1263
1264 if (bGMSG)
1265 {
1266 RemoveMsg |= ((GetWakeMask( MsgFilterMin, MsgFilterMax ))<< 16);
1267 }
1268
1270 pti->pClientInfo->cSpins++; // Bump up the spin count.
1271
1272 do
1273 {
1274 Present = co_IntPeekMessage( pMsg,
1275 Window,
1276 MsgFilterMin,
1277 MsgFilterMax,
1278 RemoveMsg,
1279 &ExtraInfo,
1280 bGMSG );
1281 if (Present)
1282 {
1283 if ( pMsg->message != WM_DEVICECHANGE || (pMsg->wParam & 0x8000) )
1284 {
1285 /* GetMessage or PostMessage must never get messages that contain pointers */
1286 ASSERT(FindMsgMemory(pMsg->message) == NULL);
1287 }
1288
1289 if ( pMsg->message >= WM_DDE_FIRST && pMsg->message <= WM_DDE_LAST )
1290 {
1291 if (!IntDdeGetMessageHook(pMsg, ExtraInfo))
1292 {
1293 TRACE("DDE Get return ERROR\n");
1294 continue;
1295 }
1296 }
1297
1298 if (pMsg->message != WM_PAINT && pMsg->message != WM_QUIT)
1299 {
1300 if (!RtlEqualMemory(&pti->ptLast, &pMsg->pt, sizeof(POINT)))
1301 {
1303 }
1304 pti->timeLast = pMsg->time;
1305 pti->ptLast = pMsg->pt;
1306 }
1307
1308 // The WH_GETMESSAGE hook enables an application to monitor messages about to
1309 // be returned by the GetMessage or PeekMessage function.
1310
1312
1313 if ( bGMSG || pMsg->message == WM_PAINT) break;
1314 }
1315
1316 if ( bGMSG )
1317 {
1319 Window,
1320 MsgFilterMin,
1321 MsgFilterMax);
1322 if ( !NT_SUCCESS(Status) ||
1325 {
1326 Present = -1;
1327 break;
1328 }
1329 }
1330 else
1331 {
1332 if (!(RemoveMsg & PM_NOYIELD))
1333 {
1334 IdlePing();
1335 // Yield this thread!
1336 UserLeave();
1339 // Fall through to exit.
1340 IdlePong();
1341 }
1342 break;
1343 }
1344 }
1345 while( bGMSG && !Present );
1346
1347 // Been spinning, time to swap vinyl...
1348 if (pti->pClientInfo->cSpins >= 100)
1349 {
1350 // Clear the spin cycle to fix the mix.
1351 pti->pClientInfo->cSpins = 0;
1352 //if (!(pti->TIF_flags & TIF_SPINNING)) // FIXME: Need to swap vinyl...
1353 }
1354 return Present;
1355}
#define STATUS_TIMEOUT
Definition: d3dkmdt.h:49
#define WM_DDE_FIRST
Definition: dde.h:47
#define WM_DDE_LAST
Definition: dde.h:46
#define FALSE
Definition: types.h:117
unsigned int BOOL
Definition: ntddk_ex.h:94
struct _WND * PWND
#define TIF_MSGPOSCHANGED
Definition: ntuser.h:283
#define RtlEqualMemory(dst, src, len)
Definition: kdvm.h:18
#define ASSERT(a)
Definition: mode.c:44
NTSTATUS FASTCALL co_MsqWaitForNewMessages(PTHREADINFO pti, PWND WndFilter, UINT MsgFilterMin, UINT MsgFilterMax)
Definition: msgqueue.c:2113
__int3264 LONG_PTR
Definition: mstsclib_h.h:276
NTSYSAPI NTSTATUS NTAPI ZwYieldExecution(VOID)
PVOID NTAPI PsGetCurrentThreadWin32Thread(VOID)
Definition: thread.c:805
#define STATUS_USER_APC
Definition: ntstatus.h:78
LRESULT APIENTRY co_HOOK_CallHooks(INT HookId, INT Code, WPARAM wParam, LPARAM lParam)
Definition: hook.c:1102
VOID FASTCALL UserLeave(VOID)
Definition: ntuser.c:258
VOID FASTCALL UserEnterExclusive(VOID)
Definition: ntuser.c:249
#define TRACE(s)
Definition: solgame.cpp:4
POINT ptLast
Definition: win32.h:129
struct _CLIENTINFO * pClientInfo
Definition: win32.h:94
LONG timeLast
Definition: win32.h:102
FLONG TIF_flags
Definition: win32.h:95
UINT message
Definition: winuser.h:3118
DWORD time
Definition: winuser.h:3121
WPARAM wParam
Definition: winuser.h:3119
POINT pt
Definition: winuser.h:3122
BOOL APIENTRY IntDdeGetMessageHook(PMSG pMsg, LONG_PTR ExtraInfo)
Definition: dde.c:326
UINT FASTCALL GetWakeMask(UINT first, UINT last)
Definition: message.c:623
VOID FASTCALL IdlePing(VOID)
Definition: message.c:576
VOID FASTCALL IdlePong(VOID)
Definition: message.c:606
BOOL APIENTRY co_IntPeekMessage(PMSG Msg, PWND Window, UINT MsgFilterMin, UINT MsgFilterMax, UINT RemoveMsg, LONG_PTR *ExtraInfo, BOOL bGMSG)
Definition: message.c:1014
LONG_PTR LPARAM
Definition: windef.h:208
#define WM_PAINT
Definition: winuser.h:1623
#define WM_QUIT
Definition: winuser.h:1626
#define HC_ACTION
Definition: winuser.h:48
#define WM_DEVICECHANGE
Definition: winuser.h:1814
#define PM_NOYIELD
Definition: winuser.h:1200
#define PM_REMOVE
Definition: winuser.h:1199
#define WH_GETMESSAGE
Definition: winuser.h:33
#define HWND_BOTTOM
Definition: winuser.h:1208

Referenced by DefWndDoSizeMove(), DefWndStartSizeMove(), DesktopThreadMain(), MENU_SuspendPopup(), MENU_TrackMenu(), NC_DoButton(), NC_HandleNCRButtonDown(), NtUserDragDetect(), NtUserGetMessage(), NtUserPeekMessage(), and NtUserWaitForInputIdle().

◆ co_IntPeekMessage()

BOOL APIENTRY co_IntPeekMessage ( PMSG  Msg,
PWND  Window,
UINT  MsgFilterMin,
UINT  MsgFilterMax,
UINT  RemoveMsg,
LONG_PTR ExtraInfo,
BOOL  bGMSG 
)

Definition at line 1014 of file message.c.

1021{
1022 PTHREADINFO pti;
1023 BOOL RemoveMessages;
1024 UINT ProcessMask;
1025 BOOL Hit = FALSE;
1026
1028
1029 RemoveMessages = RemoveMsg & PM_REMOVE;
1030 ProcessMask = HIWORD(RemoveMsg);
1031
1032 /* Hint, "If wMsgFilterMin and wMsgFilterMax are both zero, PeekMessage returns
1033 all available messages (that is, no range filtering is performed)". */
1034 if (!ProcessMask) ProcessMask = (QS_ALLPOSTMESSAGE|QS_ALLINPUT);
1035
1036 IdlePong();
1037
1038 do
1039 {
1040 /* Update the last message-queue access time */
1041 pti->pcti->timeLastRead = EngGetTickCount32();
1042
1043 // Post mouse moves while looping through peek messages.
1044 if (pti->MessageQueue->QF_flags & QF_MOUSEMOVED)
1045 {
1047 }
1048
1049 /* Dispatch sent messages here. */
1050 while ( co_MsqDispatchOneSentMessage(pti) )
1051 {
1052 /* if some PM_QS* flags were specified, only handle sent messages from now on */
1053 if (HIWORD(RemoveMsg) && !bGMSG) Hit = TRUE; // wine does this; ProcessMask = QS_SENDMESSAGE;
1054 }
1055 if (Hit) return FALSE;
1056
1057 /* Clear changed bits so we can wait on them if we don't find a message */
1058 if (ProcessMask & QS_POSTMESSAGE)
1059 {
1060 pti->pcti->fsChangeBits &= ~(QS_POSTMESSAGE | QS_HOTKEY | QS_TIMER);
1061 if (MsgFilterMin == 0 && MsgFilterMax == 0) // Wine hack does this; ~0U)
1062 {
1063 pti->pcti->fsChangeBits &= ~QS_ALLPOSTMESSAGE;
1064 }
1065 }
1066
1067 if (ProcessMask & QS_INPUT)
1068 {
1069 pti->pcti->fsChangeBits &= ~QS_INPUT;
1070 }
1071
1072 /* Now check for normal messages. */
1073 if (( (ProcessMask & QS_POSTMESSAGE) ||
1074 (ProcessMask & QS_HOTKEY) ) &&
1075 MsqPeekMessage( pti,
1076 RemoveMessages,
1077 Window,
1078 MsgFilterMin,
1079 MsgFilterMax,
1080 ProcessMask,
1081 ExtraInfo,
1082 0,
1083 Msg ))
1084 {
1085 goto GotMessage;
1086 }
1087
1088 /* Only check for quit messages if not posted messages pending. */
1089 if (ProcessMask & QS_POSTMESSAGE && pti->QuitPosted)
1090 {
1091 /* According to the PSDK, WM_QUIT messages are always returned, regardless
1092 of the filter specified */
1093 Msg->hwnd = NULL;
1094 Msg->message = WM_QUIT;
1095 Msg->wParam = pti->exitCode;
1096 Msg->lParam = 0;
1097 if (RemoveMessages)
1098 {
1099 pti->QuitPosted = FALSE;
1101 pti->pcti->fsWakeBits &= ~QS_ALLPOSTMESSAGE;
1102 pti->pcti->fsChangeBits &= ~QS_ALLPOSTMESSAGE;
1103 }
1104 goto GotMessage;
1105 }
1106
1107 /* Check for hardware events. */
1108 if ((ProcessMask & QS_INPUT) &&
1110 RemoveMessages,
1111 Window,
1112 MsgFilterMin,
1113 MsgFilterMax,
1114 ProcessMask,
1115 Msg))
1116 {
1117 goto GotMessage;
1118 }
1119
1120 /* Now check for System Event messages. */
1121 {
1122 LONG_PTR eExtraInfo;
1123 MSG eMsg;
1124 DWORD dwQEvent;
1125 if (MsqPeekMessage( pti,
1126 TRUE,
1127 Window,
1128 0,
1129 0,
1130 QS_EVENT,
1131 &eExtraInfo,
1132 &dwQEvent,
1133 &eMsg ))
1134 {
1135 handle_internal_events( pti, Window, dwQEvent, eExtraInfo, &eMsg);
1136 continue;
1137 }
1138 }
1139
1140 /* Check for sent messages again. */
1141 while ( co_MsqDispatchOneSentMessage(pti) )
1142 {
1143 if (HIWORD(RemoveMsg) && !bGMSG) Hit = TRUE;
1144 }
1145 if (Hit) return FALSE;
1146
1147 /* Check for paint messages. */
1148 if ((ProcessMask & QS_PAINT) &&
1149 pti->cPaintsReady &&
1151 MsgFilterMin,
1152 MsgFilterMax,
1153 pti,
1154 Msg,
1155 RemoveMessages))
1156 {
1157 goto GotMessage;
1158 }
1159
1160 /* This is correct, check for the current threads timers waiting to be
1161 posted to this threads message queue. If any we loop again.
1162 */
1163 if ((ProcessMask & QS_TIMER) &&
1165 {
1166 continue;
1167 }
1168
1169 return FALSE;
1170 }
1171 while (TRUE);
1172
1173GotMessage:
1174 /* Update the last message-queue access time */
1175 pti->pcti->timeLastRead = EngGetTickCount32();
1176 return TRUE;
1177}
#define EngGetTickCount32()
Definition: eng.h:43
unsigned long DWORD
Definition: ntddk_ex.h:95
VOID FASTCALL ClearMsgBitsMask(PTHREADINFO pti, UINT MessageBits)
Definition: msgqueue.c:445
BOOLEAN FASTCALL co_MsqDispatchOneSentMessage(_In_ PTHREADINFO pti)
Definition: msgqueue.c:873
BOOL APIENTRY co_MsqPeekHardwareMessage(IN PTHREADINFO pti, IN BOOL Remove, IN PWND Window, IN UINT MsgFilterLow, IN UINT MsgFilterHigh, IN UINT QSflags, OUT MSG *pMsg)
Definition: msgqueue.c:1933
VOID FASTCALL IntCoalesceMouseMove(PTHREADINFO pti)
Definition: msgqueue.c:551
BOOLEAN APIENTRY MsqPeekMessage(IN PTHREADINFO pti, IN BOOLEAN Remove, IN PWND Window, IN UINT MsgFilterLow, IN UINT MsgFilterHigh, IN UINT QSflags, OUT LONG_PTR *ExtraInfo, OUT DWORD *dwQEvent, OUT PMSG Message)
Definition: msgqueue.c:2056
#define QF_MOUSEMOVED
Definition: msgqueue.h:99
unsigned int UINT
Definition: ndis.h:50
INT exitCode
Definition: win32.h:107
BOOLEAN QuitPosted
Definition: win32.h:105
struct _CLIENTTHREADINFO * pcti
Definition: win32.h:91
UINT cPaintsReady
Definition: win32.h:109
struct _USER_MESSAGE_QUEUE * MessageQueue
Definition: win32.h:89
#define HIWORD(l)
Definition: typedefs.h:247
#define QS_EVENT
Definition: undocuser.h:97
BOOL FASTCALL IntGetPaintMessage(PWND Window, UINT MsgFilterMin, UINT MsgFilterMax, PTHREADINFO Thread, MSG *Message, BOOL Remove)
Definition: painting.c:1191
static LRESULT handle_internal_events(PTHREADINFO pti, PWND pWnd, DWORD dwQEvent, LONG_PTR ExtraInfo, PMSG pMsg)
Definition: message.c:862
BOOL FASTCALL PostTimerMessages(PWND Window)
Definition: timer.c:401
#define QS_TIMER
Definition: winuser.h:881
#define QS_ALLPOSTMESSAGE
Definition: winuser.h:885
#define QS_ALLINPUT
Definition: winuser.h:906
#define QS_HOTKEY
Definition: winuser.h:884
#define QS_INPUT
Definition: winuser.h:902
#define QS_POSTMESSAGE
Definition: winuser.h:880
#define QS_PAINT
Definition: winuser.h:882

Referenced by co_IntGetPeekMessage(), and co_IntWaitMessage().

◆ co_IntSendMessage()

LRESULT FASTCALL co_IntSendMessage ( HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam 
)

Definition at line 1495 of file message.c.

1499{
1500 ULONG_PTR Result = 0;
1501
1503 {
1504 return (LRESULT)Result;
1505 }
1506 return 0;
1507}
uint32_t ULONG_PTR
Definition: typedefs.h:65
#define SMTO_NORMAL
Definition: winuser.h:1228

Referenced by co_IntDoSendMessage(), co_IntPaintWindows(), co_IntProcessKeyboardMessage(), co_IntProcessMouseMessage(), co_IntSendActivateMessages(), co_IntSendDeactivateMessages(), co_IntSetForegroundMessageQueue(), co_IntSetWindowLongPtr(), co_IntSnapWindow(), co_IntTranslateAccelerator(), co_IntUpdateWindows(), co_MsqDispatchOneSentMessage(), co_UserActivateKeyboardLayout(), co_UserCreateWindowEx(), co_UserFreeWindow(), co_UserSetCapture(), co_WinPosDoNCCALCSize(), co_WinPosDoWinPosChanging(), co_WinPosGetMinMaxInfo(), co_WinPosSearchChildren(), co_WinPosShowWindow(), DefWndDoSizeMove(), DefWndHandleSysCommand(), DefWndHandleWindowPosChanged(), DefWndPrint(), DefWndStartSizeMove(), ForceNCPaintErase(), GetControlColor(), IntActivateWindow(), IntBeginPaint(), IntCheckImeShowStatus(), IntClientShutdown(), IntDeactivateWindow(), IntDefWindowProc(), IntEnableWindow(), IntFlashWindowEx(), IntFocusSetInputContext(), IntImeWindowPosChanged(), IntImmActivateLayout(), IntScrollWindowEx(), IntSendDestroyMsg(), IntSendFocusMessages(), IntSendMessageToUI(), IntSendNCPaint(), IntSendOpenStatusNotify(), IntSendParentNotify(), IntShowOwnedPopups(), IntTrackPopupMenuEx(), MENU_CalcItemSize(), MENU_DoNextMenu(), MENU_DrawBitmapItem(), MENU_DrawMenuItem(), MENU_ExitTracking(), MENU_FindItemByKey(), MENU_GetBitmapItemSize(), MENU_HideSubPopups(), MENU_InitTracking(), MENU_SelectItem(), MENU_ShowSubPopup(), MENU_TrackMenu(), MsqSendParentNotify(), NC_DoButton(), NC_DoNCPaint(), NC_HandleNCLButtonDblClk(), NC_HandleNCLButtonDown(), NC_HandleNCRButtonDown(), NtUserChangeClipboardChain(), NtUserGetClipboardData(), NtUserGetComboBoxInfo(), NtUserGetListBoxInfo(), NtUserGetMenuBarInfo(), UserClipboardRelease(), UserEmptyClipboard(), and UserPaintCaption().

◆ co_IntSendMessageNoWait()

LRESULT FASTCALL co_IntSendMessageNoWait ( HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam 
)

Definition at line 1763 of file message.c.

1767{
1768 ULONG_PTR Result = 0;
1770 Msg,
1771 wParam,
1772 lParam,
1773 NULL,
1774 0,
1775 &Result);
1776}
LRESULT FASTCALL co_IntSendMessageWithCallBack(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, SENDASYNCPROC CompletionCallback, ULONG_PTR CompletionCallbackContext, ULONG_PTR *uResult)
Definition: message.c:1785

Referenced by co_WinPosGetNonClientSize(), co_WinPosMinMaximize(), co_WinPosSendSizeMove(), co_WinPosSetWindowPos(), co_WinPosShowWindow(), IntEndDeferWindowPosEx(), IntSendSyncPaint(), IntSetWindowPlacement(), NtUserSetClipboardViewer(), NtUserShowWindowAsync(), UserClipboardRelease(), UserCloseClipboard(), and UserSendNotifyMessage().

◆ co_IntSendMessageTimeout()

LRESULT FASTCALL co_IntSendMessageTimeout ( HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam,
UINT  uFlags,
UINT  uTimeout,
ULONG_PTR uResult 
)

Definition at line 1707 of file message.c.

1714{
1716 HWND *Children;
1717 HWND *Child;
1718
1719 if (hWnd != HWND_BROADCAST && hWnd != HWND_TOPMOST)
1720 {
1721 return co_IntSendMessageTimeoutSingle(hWnd, Msg, wParam, lParam, uFlags, uTimeout, uResult);
1722 }
1723
1724 if (!is_message_broadcastable(Msg)) return TRUE;
1725
1727 if (NULL == DesktopWindow)
1728 {
1730 return 0;
1731 }
1732
1733 if (hWnd != HWND_TOPMOST)
1734 {
1735 /* Send message to the desktop window too! */
1737 }
1738
1740 if (NULL == Children)
1741 {
1742 return 0;
1743 }
1744
1745 for (Child = Children; NULL != *Child; Child++)
1746 {
1748 if (!pwnd) continue;
1749
1750 if ( pwnd->fnid == FNID_MENU ||
1752 continue;
1753
1755 }
1756
1758
1759 return (LRESULT) TRUE;
1760}
UINT uFlags
Definition: api.c:59
PSERVERINFO gpsi
Definition: imm.c:18
#define UserHMGetHandle(obj)
Definition: ntuser.h:230
#define ICLS_SWITCH
Definition: ntuser.h:932
#define FNID_MENU
Definition: ntuser.h:861
#define ExFreePoolWithTag(_P, _T)
Definition: module.h:1109
Implementation of the Explorer desktop window.
Definition: desktop.h:52
RTL_ATOM atomClassName
Definition: ntuser.h:568
PCLS pcls
Definition: ntuser.h:720
DWORD fnid
Definition: ntuser.h:709
ATOM atomSysClass[ICLS_NOTUSED+1]
Definition: ntuser.h:1060
_Must_inspect_result_ _In_ WDFDEVICE _In_ WDFDEVICE Child
Definition: wdffdo.h:536
PWND FASTCALL UserGetDesktopWindow(VOID)
Definition: desktop.c:1403
static LRESULT FASTCALL co_IntSendMessageTimeoutSingle(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, UINT uFlags, UINT uTimeout, ULONG_PTR *uResult)
Definition: message.c:1510
static BOOL is_message_broadcastable(UINT msg)
Definition: message.c:617
#define USERTAG_WINDOWLIST
Definition: tags.h:298
HWND *FASTCALL IntWinListChildren(PWND Window)
Definition: window.c:276
#define ERROR_INTERNAL_ERROR
Definition: winerror.h:840

Referenced by co_IntDoSendMessage(), co_IntSendMessage(), NtUserMessageCall(), UserChangeDisplaySettings(), and UserSystemParametersInfo().

◆ co_IntSendMessageTimeoutSingle()

static LRESULT FASTCALL co_IntSendMessageTimeoutSingle ( HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam,
UINT  uFlags,
UINT  uTimeout,
ULONG_PTR uResult 
)
static

Definition at line 1510 of file message.c.

1517{
1519 PWND Window;
1520 PMSGMEMORY MsgMemoryEntry;
1521 INT lParamBufferSize;
1522 LPARAM lParamPacked;
1523 PTHREADINFO Win32Thread, ptiSendTo = NULL;
1524 ULONG_PTR Result = 0;
1525 LRESULT Ret = FALSE;
1527 BOOL DoCallBack = TRUE;
1528
1530 {
1531 TRACE("SendMessageTimeoutSingle: Invalid handle 0x%p!\n",hWnd);
1532 return FALSE;
1533 }
1534
1535 UserRefObjectCo(Window, &Ref);
1536
1537 Win32Thread = PsGetCurrentThreadWin32Thread();
1538
1539 ptiSendTo = IntSendTo(Window, Win32Thread, Msg);
1540
1541 if ( Msg >= WM_DDE_FIRST && Msg <= WM_DDE_LAST )
1542 {
1544 {
1545 ERR("Sending Exit DDE 0x%x\n",Msg);
1546 goto Cleanup; // Return FALSE
1547 }
1548 }
1549
1550 if ( !ptiSendTo )
1551 {
1552 if (Win32Thread->TIF_flags & TIF_INCLEANUP)
1553 {
1554 /* Never send messages to exiting threads */
1555 goto Cleanup; // Return FALSE
1556 }
1557
1558 if (Msg & 0x80000000)
1559 {
1560 TRACE("SMTS: Internal Message!\n");
1562 if (uResult) *uResult = Result;
1563 Ret = TRUE;
1564 goto Cleanup;
1565 }
1566
1567 // Only happens when calling the client!
1569
1570 if ( Window->state & WNDS_SERVERSIDEWINDOWPROC )
1571 {
1572 TRACE("SMT: Server Side Window Procedure\n");
1573 // Handle it here. Safeguard against excessive recursions.
1574 if (IoGetRemainingStackSize() < PAGE_SIZE)
1575 {
1576 ERR("Server Callback Exceeded Stack!\n");
1577 goto Cleanup; // Return FALSE
1578 }
1579 /* Return after server side call, IntCallWndProcRet will not be called. */
1580 switch(Window->fnid)
1581 {
1582 case FNID_DESKTOP:
1583 DoCallBack = !DesktopWindowProc(Window, Msg, wParam, lParam,(LRESULT*)&Result);
1584 break;
1585 case FNID_MESSAGEWND:
1587 break;
1588 case FNID_MENU:
1589 DoCallBack = !PopupMenuWndProc( Window, Msg, wParam, lParam,(LRESULT*)&Result);
1590 break;
1591 }
1592 if (!DoCallBack)
1593 {
1594 if (uResult) *uResult = Result;
1595 Ret = TRUE;
1596 goto Cleanup;
1597 }
1598 }
1599 /* See if this message type is present in the table */
1600 MsgMemoryEntry = FindMsgMemory(Msg);
1601 if (NULL == MsgMemoryEntry)
1602 {
1603 lParamBufferSize = -1;
1604 }
1605 else
1606 {
1607 lParamBufferSize = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
1608 // If zero, do not allow callback on client side to allocate a buffer!!!!! See CORE-7695.
1609 if (!lParamBufferSize) lParamBufferSize = -1;
1610 }
1611
1612 if (! NT_SUCCESS(PackParam(&lParamPacked, Msg, wParam, lParam, FALSE)))
1613 {
1614 ERR("Failed to pack message parameters\n");
1615 goto Cleanup; // Return FALSE
1616 }
1617
1619 !Window->Unicode,
1620 hWnd,
1621 Msg,
1622 wParam,
1623 lParamPacked,
1624 lParamBufferSize );
1625 if (uResult)
1626 {
1627 *uResult = Result;
1628 }
1629
1630 if (! NT_SUCCESS(UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE)))
1631 {
1632 ERR("Failed to unpack message parameters\n");
1633 Ret = TRUE;
1634 goto Cleanup;
1635 }
1636
1637 // Only happens when calling the client!
1639
1640 Ret = TRUE;
1641 goto Cleanup;
1642 }
1643
1644 if (Window->state & WNDS_DESTROYED)
1645 {
1646 /* FIXME: Last error? */
1647 ERR("Attempted to send message to window %p that is being destroyed!\n", hWnd);
1648 goto Cleanup; // Return FALSE
1649 }
1650
1651 if ((uFlags & SMTO_ABORTIFHUNG) && MsqIsHung(ptiSendTo, 4 * MSQ_HUNG))
1652 {
1653 // FIXME: Set window hung and add to a list.
1654 /* FIXME: Set a LastError? */
1655 ERR("Window %p (%p) (pti %p) is hung!\n", hWnd, Window, ptiSendTo);
1656 goto Cleanup; // Return FALSE
1657 }
1658
1659 do
1660 {
1661 Status = co_MsqSendMessage( ptiSendTo,
1662 hWnd,
1663 Msg,
1664 wParam,
1665 lParam,
1666 uTimeout,
1667 (uFlags & SMTO_BLOCK),
1668 MSQ_NORMAL,
1669 uResult );
1670 }
1671 while ((Status == STATUS_TIMEOUT) &&
1672 (uFlags & SMTO_NOTIMEOUTIFNOTHUNG) &&
1673 !MsqIsHung(ptiSendTo, MSQ_HUNG)); // FIXME: Set window hung and add to a list.
1674
1675 if (Status == STATUS_TIMEOUT)
1676 {
1677 if (0 && MsqIsHung(ptiSendTo, MSQ_HUNG))
1678 {
1679 TRACE("Let's go Ghost!\n");
1681 }
1682/*
1683 * MSDN says:
1684 * Microsoft Windows 2000: If GetLastError returns zero, then the function
1685 * timed out.
1686 * XP+ : If the function fails or times out, the return value is zero.
1687 * To get extended error information, call GetLastError. If GetLastError
1688 * returns ERROR_TIMEOUT, then the function timed out.
1689 */
1691 goto Cleanup; // Return FALSE
1692 }
1693 else if (!NT_SUCCESS(Status))
1694 {
1696 goto Cleanup; // Return FALSE
1697 }
1698
1699 Ret = TRUE;
1700
1701Cleanup:
1703 return Ret;
1704}
static const WCHAR Cleanup[]
Definition: register.c:80
#define ULONG_PTR
Definition: config.h:101
#define PAGE_SIZE
Definition: env_spec_w32.h:49
#define TIF_INCLEANUP
Definition: ntuser.h:263
#define FNID_DESKTOP
Definition: ntuser.h:862
#define WNDS_SERVERSIDEWINDOWPROC
Definition: ntuser.h:623
#define FNID_MESSAGEWND
Definition: ntuser.h:864
NTSTATUS FASTCALL co_MsqSendMessage(PTHREADINFO ptirec, HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam, UINT uTimeout, BOOL Block, INT HookMessage, ULONG_PTR *uResult)
Definition: msgqueue.c:1056
BOOL FASTCALL MsqIsHung(PTHREADINFO pti, DWORD TimeOut)
Definition: msgqueue.c:2143
#define MSQ_NORMAL
Definition: msgqueue.h:4
#define MSQ_HUNG
Definition: msgqueue.h:3
BOOL FASTCALL IntMakeHungWindowGhosted(HWND hwndHung)
Definition: ghost.c:156
static __inline VOID UserDerefObjectCo(PVOID obj)
Definition: object.h:43
static __inline VOID UserRefObjectCo(PVOID obj, PUSER_REFERENCE_ENTRY UserReferenceEntry)
Definition: object.h:27
#define STATUS_SUCCESS
Definition: shellext.h:65
Definition: object.h:4
int32_t INT
Definition: typedefs.h:58
VOID FASTCALL SetLastNtError(_In_ NTSTATUS Status)
Definition: error.c:31
LRESULT APIENTRY co_IntCallWindowProc(WNDPROC Proc, BOOLEAN IsAnsiProc, HWND Wnd, UINT Message, WPARAM wParam, LPARAM lParam, INT lParamBufferSize)
Definition: callback.c:282
BOOL FASTCALL IntDdeSendMessageHook(PWND pWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
Definition: dde.c:386
BOOL FASTCALL DesktopWindowProc(PWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam, LRESULT *lResult)
Definition: desktop.c:1456
BOOL FASTCALL UserMessageWindowProc(PWND pwnd, UINT Msg, WPARAM wParam, LPARAM lParam, LRESULT *lResult)
Definition: desktop.c:1542
BOOL WINAPI PopupMenuWndProc(PWND Wnd, UINT Message, WPARAM wParam, LPARAM lParam, LRESULT *lResult)
Definition: menu.c:4647
static VOID FASTCALL IntCallWndProcRet(PWND Window, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, LRESULT *uResult)
Definition: message.c:790
static UINT FASTCALL MsgMemorySize(PMSGMEMORY MsgMemoryEntry, WPARAM wParam, LPARAM lParam)
Definition: message.c:187
static NTSTATUS PackParam(LPARAM *lParamPacked, UINT Msg, WPARAM wParam, LPARAM lParam, BOOL NonPagedPoolNeeded)
Definition: message.c:284
static VOID FASTCALL IntCallWndProc(PWND Window, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
Definition: message.c:756
static LRESULT handle_internal_message(PWND pWnd, UINT msg, WPARAM wparam, LPARAM lparam)
Definition: message.c:821
static NTSTATUS UnpackParam(LPARAM lParamPacked, UINT Msg, WPARAM wParam, LPARAM lParam, BOOL NonPagedPoolUsed)
Definition: message.c:402
#define ERROR_TIMEOUT
Definition: winerror.h:941
#define SMTO_BLOCK
Definition: winuser.h:1227
#define SMTO_ABORTIFHUNG
Definition: winuser.h:1226

Referenced by co_IntSendMessageTimeout().

◆ co_IntSendMessageWithCallBack()

LRESULT FASTCALL co_IntSendMessageWithCallBack ( HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam,
SENDASYNCPROC  CompletionCallback,
ULONG_PTR  CompletionCallbackContext,
ULONG_PTR uResult 
)

Definition at line 1785 of file message.c.

1792{
1794 PWND Window;
1795 PMSGMEMORY MsgMemoryEntry;
1796 INT lParamBufferSize;
1797 LPARAM lParamPacked;
1798 PTHREADINFO Win32Thread, ptiSendTo = NULL;
1799 LRESULT Ret = FALSE;
1802 BOOL DoCallBack = TRUE;
1803
1805 {
1806 TRACE("SendMessageWithCallBack: Invalid handle 0x%p\n",hWnd);
1807 return FALSE;
1808 }
1809
1810 UserRefObjectCo(Window, &Ref);
1811
1812 if (Window->state & WNDS_DESTROYED)
1813 {
1814 /* FIXME: last error? */
1815 ERR("Attempted to send message to window %p that is being destroyed\n", hWnd);
1816 goto Cleanup; // Return FALSE
1817 }
1818
1819 Win32Thread = PsGetCurrentThreadWin32Thread();
1820
1821 if (Win32Thread == NULL || Win32Thread->TIF_flags & TIF_INCLEANUP)
1822 goto Cleanup; // Return FALSE
1823
1824 ptiSendTo = IntSendTo(Window, Win32Thread, Msg);
1825
1826 if (Msg & 0x80000000 &&
1827 !ptiSendTo)
1828 {
1829 if (Win32Thread->TIF_flags & TIF_INCLEANUP)
1830 goto Cleanup; // Return FALSE
1831
1832 TRACE("SMWCB: Internal Message\n");
1834 if (uResult) *uResult = Result;
1835 Ret = TRUE;
1836 goto Cleanup;
1837 }
1838
1839 /* See if this message type is present in the table */
1840 MsgMemoryEntry = FindMsgMemory(Msg);
1841 if (NULL == MsgMemoryEntry)
1842 {
1843 lParamBufferSize = -1;
1844 }
1845 else
1846 {
1847 lParamBufferSize = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
1848 if (!lParamBufferSize) lParamBufferSize = -1;
1849 }
1850
1851 if (!NT_SUCCESS(PackParam(&lParamPacked, Msg, wParam, lParam, !!ptiSendTo)))
1852 {
1853 ERR("Failed to pack message parameters\n");
1854 goto Cleanup; // Return FALSE
1855 }
1856
1857 /* If it can be sent now, then send it. */
1858 if (!ptiSendTo)
1859 {
1860 if (Win32Thread->TIF_flags & TIF_INCLEANUP)
1861 {
1862 UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE);
1863 /* Never send messages to exiting threads */
1864 goto Cleanup; // Return FALSE
1865 }
1866
1868
1869 if (Window->state & WNDS_SERVERSIDEWINDOWPROC)
1870 {
1871 TRACE("SMWCB: Server Side Window Procedure\n");
1872 switch(Window->fnid)
1873 {
1874 case FNID_DESKTOP:
1875 DoCallBack = !DesktopWindowProc(Window, Msg, wParam, lParamPacked, (LRESULT*)&Result);
1876 break;
1877 case FNID_MESSAGEWND:
1879 break;
1880 case FNID_MENU:
1881 DoCallBack = !PopupMenuWndProc(Window, Msg, wParam, lParam, (LRESULT*)&Result);
1882 break;
1883 }
1884 }
1885
1886 if (DoCallBack)
1888 !Window->Unicode,
1889 hWnd,
1890 Msg,
1891 wParam,
1892 lParamPacked,
1893 lParamBufferSize);
1894 if(uResult)
1895 {
1896 *uResult = Result;
1897 }
1898
1900
1902 {
1904 hWnd,
1905 Msg,
1906 CompletionCallbackContext,
1907 Result);
1908 }
1909 }
1910
1911 if (!ptiSendTo)
1912 {
1913 if (!NT_SUCCESS(UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE)))
1914 {
1915 ERR("Failed to unpack message parameters\n");
1916 }
1917 Ret = TRUE;
1918 goto Cleanup;
1919 }
1920
1922 {
1923 ERR("Failed to allocate message\n");
1924 goto Cleanup; // Return FALSE
1925 }
1926
1927 Message->Msg.hwnd = hWnd;
1928 Message->Msg.message = Msg;
1929 Message->Msg.wParam = wParam;
1930 Message->Msg.lParam = lParamPacked;
1931 Message->pkCompletionEvent = NULL; // No event needed.
1932 Message->lResult = 0;
1933 Message->QS_Flags = 0;
1934 Message->ptiReceiver = ptiSendTo;
1935 Message->ptiSender = NULL;
1936 Message->ptiCallBackSender = Win32Thread;
1937 Message->CompletionCallback = CompletionCallback;
1938 Message->CompletionCallbackContext = CompletionCallbackContext;
1939 Message->HookMessage = MSQ_NORMAL;
1940 Message->HasPackedLParam = (lParamBufferSize > 0);
1941 Message->QS_Flags = QS_SENDMESSAGE;
1942 Message->flags = SMF_RECEIVERFREE;
1943
1944 if (Msg & 0x80000000) // Higher priority event message!
1945 InsertHeadList(&ptiSendTo->SentMessagesListHead, &Message->ListEntry);
1946 else
1947 InsertTailList(&ptiSendTo->SentMessagesListHead, &Message->ListEntry);
1948 MsqWakeQueue(ptiSendTo, QS_SENDMESSAGE, TRUE);
1949
1950 Ret = TRUE;
1951
1952Cleanup:
1954 return Ret;
1955}
const TCHAR * CompletionCallback(unsigned __int64 &rnIndex, const BOOL *pblnForward, const TCHAR *pszContext, const TCHAR *pszBegin)
Definition: Completion.cpp:439
static const WCHAR Message[]
Definition: register.c:74
#define InsertTailList(ListHead, Entry)
#define InsertHeadList(ListHead, Entry)
VOID FASTCALL MsqWakeQueue(PTHREADINFO pti, DWORD MessageBits, BOOL KeyEvent)
Definition: msgqueue.c:412
PUSER_SENT_MESSAGE FASTCALL AllocateUserMessage(BOOL KEvent)
Definition: msgqueue.c:763
#define SMF_RECEIVERFREE
Definition: msgqueue.h:40
LIST_ENTRY SentMessagesListHead
Definition: win32.h:100
VOID APIENTRY co_IntCallSentMessageCallback(SENDASYNCPROC CompletionCallback, HWND hWnd, UINT Msg, ULONG_PTR CompletionCallbackContext, LRESULT Result)
Definition: callback.c:238
#define QS_SENDMESSAGE
Definition: winuser.h:883

Referenced by co_IntSendMessageNoWait(), IntFocusSetInputContext(), and NtUserMessageCall().

◆ co_IntWaitMessage()

BOOL FASTCALL co_IntWaitMessage ( PWND  Window,
UINT  MsgFilterMin,
UINT  MsgFilterMax 
)

Definition at line 1180 of file message.c.

1183{
1184 PTHREADINFO pti;
1186 MSG Msg;
1187 LONG_PTR ExtraInfo = 0;
1188
1190
1191 do
1192 {
1193 if ( co_IntPeekMessage( &Msg, // Dont reenter!
1194 Window,
1195 MsgFilterMin,
1196 MsgFilterMax,
1197 MAKELONG( PM_NOREMOVE, GetWakeMask( MsgFilterMin, MsgFilterMax)),
1198 &ExtraInfo,
1199 TRUE ) ) // act like GetMessage.
1200 {
1201 return TRUE;
1202 }
1203
1204 /* Nothing found. Wait for new messages. */
1206 Window,
1207 MsgFilterMin,
1208 MsgFilterMax);
1209 if (!NT_SUCCESS(Status))
1210 {
1212 ERR("Exit co_IntWaitMessage on error!\n");
1213 return FALSE;
1214 }
1216 {
1217 return FALSE;
1218 }
1219 }
1220 while ( TRUE );
1221
1222 return FALSE;
1223}
#define MAKELONG(a, b)
Definition: typedefs.h:249
#define PM_NOREMOVE
Definition: winuser.h:1198

Referenced by MENU_TrackMenu(), NtUserDragDetect(), and NtUserWaitMessage().

◆ CopyMsgToKernelMem()

static NTSTATUS FASTCALL CopyMsgToKernelMem ( MSG KernelModeMsg,
MSG UserModeMsg,
PMSGMEMORY  MsgMemoryEntry 
)
static

Definition at line 451 of file message.c.

452{
454
455 PVOID KernelMem;
456 UINT Size;
457
458 *KernelModeMsg = *UserModeMsg;
459
460 /* See if this message type is present in the table */
461 if (NULL == MsgMemoryEntry)
462 {
463 /* Not present, no copying needed */
464 return STATUS_SUCCESS;
465 }
466
467 /* Determine required size */
468 Size = MsgMemorySize(MsgMemoryEntry, UserModeMsg->wParam, UserModeMsg->lParam);
469
470 if (0 != Size)
471 {
472 /* Allocate kernel mem */
474 if (NULL == KernelMem)
475 {
476 ERR("Not enough memory to copy message to kernel mem\n");
477 return STATUS_NO_MEMORY;
478 }
479 KernelModeMsg->lParam = (LPARAM) KernelMem;
480
481 /* Copy data if required */
482 if (0 != (MsgMemoryEntry->Flags & MMS_FLAG_READ))
483 {
484 TRACE("Copy Message %u from usermode buffer\n", KernelModeMsg->message);
485 /* Don't do extra testing for 1 word messages. For examples see
486 * https://wiki.winehq.org/List_Of_Windows_Messages and
487 * we are just handling WM_WININICHANGE here. */
488 if (Size > 1 && UserModeMsg->lParam &&
489 KernelModeMsg->message == WM_WININICHANGE)
490 {
491 WCHAR lParamMsg[_countof(StrUserKernel[0]) + 1] = { 0 };
493 {
494 RtlCopyMemory(lParamMsg, (WCHAR*)UserModeMsg->lParam, sizeof(lParamMsg));
495 }
497 {
499 }
500 _SEH2_END;
501
502 /* Make sure that we have a UNICODE_NULL within lParamMsg */
503 lParamMsg[ARRAYSIZE(lParamMsg) - 1] = UNICODE_NULL;
504
505 if (!UserModeMsg->wParam && PosInArray(lParamMsg) >= 0)
506 {
507 TRACE("Copy String '%S' from usermode buffer\n", lParamMsg);
508 wcscpy(KernelMem, lParamMsg);
509 return STATUS_SUCCESS;
510 }
511 }
512
513 Status = MmCopyFromCaller(KernelMem, (PVOID)UserModeMsg->lParam, Size);
514 if (!NT_SUCCESS(Status))
515 {
516 ERR("Failed to copy message to kernel: invalid usermode lParam buffer\n");
517 ExFreePoolWithTag(KernelMem, TAG_MSG);
518 return Status;
519 }
520 }
521 else
522 {
523 /* Make sure we don't pass any secrets to usermode */
524 RtlZeroMemory(KernelMem, Size);
525 }
526 }
527 else
528 {
529 KernelModeMsg->lParam = 0;
530 }
531
532 return STATUS_SUCCESS;
533}
#define STATUS_NO_MEMORY
Definition: d3dkmdt.h:51
#define ARRAYSIZE(array)
Definition: filtermapper.c:47
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
#define PagedPool
Definition: env_spec_w32.h:308
#define EXCEPTION_EXECUTE_HANDLER
Definition: excpt.h:85
#define UNICODE_NULL
#define STATUS_ACCESS_VIOLATION
Definition: ntstatus.h:242
#define MmCopyFromCaller
Definition: polytest.cpp:29
#define _SEH2_EXCEPT(...)
Definition: pseh2_64.h:66
#define _SEH2_END
Definition: pseh2_64.h:155
#define _SEH2_TRY
Definition: pseh2_64.h:55
#define _SEH2_YIELD(__stmt)
Definition: pseh2_64.h:168
_CRTIMP wchar_t *__cdecl wcscpy(_Out_writes_z_(_String_length_(_Source)+1) wchar_t *_Dest, _In_z_ const wchar_t *_Source)
#define _countof(array)
Definition: sndvol32.h:70
#define RtlCopyMemory(Destination, Source, Length)
Definition: typedefs.h:263
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:262
_Must_inspect_result_ _In_ WDFDEVICE _In_ PWDF_DEVICE_PROPERTY_DATA _In_ DEVPROPTYPE _In_ ULONG Size
Definition: wdfdevice.h:4533
#define MMS_FLAG_READ
Definition: message.c:132
WCHAR StrUserKernel[3][20]
Definition: message.c:18
static INT PosInArray(_In_ PCWSTR String)
Definition: message.c:28
#define TAG_MSG
Definition: tags.h:7
#define WM_WININICHANGE
Definition: winuser.h:1633
__wchar_t WCHAR
Definition: xmlstorage.h:180

Referenced by co_IntDoSendMessage().

◆ CopyMsgToUserMem()

static NTSTATUS FASTCALL CopyMsgToUserMem ( MSG UserModeMsg,
MSG KernelModeMsg 
)
static

Definition at line 536 of file message.c.

537{
539 PMSGMEMORY MsgMemoryEntry;
540 UINT Size;
541
542 /* See if this message type is present in the table */
543 MsgMemoryEntry = FindMsgMemory(UserModeMsg->message);
544 if (NULL == MsgMemoryEntry)
545 {
546 /* Not present, no copying needed */
547 return STATUS_SUCCESS;
548 }
549
550 /* Determine required size */
551 Size = MsgMemorySize(MsgMemoryEntry, UserModeMsg->wParam, UserModeMsg->lParam);
552
553 if (0 != Size)
554 {
555 /* Copy data if required */
556 if (0 != (MsgMemoryEntry->Flags & MMS_FLAG_WRITE))
557 {
558 Status = MmCopyToCaller((PVOID) UserModeMsg->lParam, (PVOID) KernelModeMsg->lParam, Size);
559 if (! NT_SUCCESS(Status))
560 {
561 ERR("Failed to copy message from kernel: invalid usermode lParam buffer\n");
562 ExFreePool((PVOID) KernelModeMsg->lParam);
563 return Status;
564 }
565 }
566 ExFreePool((PVOID) KernelModeMsg->lParam);
567 }
568
569 return STATUS_SUCCESS;
570}
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define MmCopyToCaller(x, y, z)
Definition: mmcopy.h:19
#define MMS_FLAG_WRITE
Definition: message.c:133

Referenced by co_IntDoSendMessage().

◆ DBG_DEFAULT_CHANNEL()

DBG_DEFAULT_CHANNEL ( UserMsg  )

◆ FindMsgMemory()

static PMSGMEMORY FASTCALL FindMsgMemory ( UINT  Msg)
static

Definition at line 168 of file message.c.

169{
170 PMSGMEMORY MsgMemoryEntry;
171
172 /* See if this message type is present in the table */
173 for (MsgMemoryEntry = g_MsgMemory;
174 MsgMemoryEntry < g_MsgMemory + sizeof(g_MsgMemory) / sizeof(MSGMEMORY);
175 MsgMemoryEntry++)
176 {
177 if (Msg == MsgMemoryEntry->Message)
178 {
179 return MsgMemoryEntry;
180 }
181 }
182
183 return NULL;
184}
UINT Message
Definition: message.c:137
static MSGMEMORY g_MsgMemory[]
Definition: message.c:143

Referenced by co_IntDoSendMessage(), co_IntGetPeekMessage(), co_IntSendMessageTimeoutSingle(), co_IntSendMessageWithCallBack(), CopyMsgToUserMem(), lParamMemorySize(), PackParam(), and UnpackParam().

◆ GetWakeMask()

UINT FASTCALL GetWakeMask ( UINT  first,
UINT  last 
)

Definition at line 623 of file message.c.

624{
625 UINT mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
626
627 if (first || last)
628 {
629 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
630 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
632 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
633 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
634 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
635 }
636 else mask = QS_ALLINPUT;
637
638 return mask;
639}
#define WM_SYSTIMER
Definition: comctl32.h:125
GLenum GLint GLuint mask
Definition: glext.h:6028
const GLint * first
Definition: glext.h:5794
static UINT UINT last
Definition: font.c:45
#define WM_NCMOUSEFIRST
Definition: msgqueue.h:239
#define WM_NCMOUSELAST
Definition: msgqueue.h:240
#define QS_KEY
Definition: winuser.h:877
#define WM_MOUSEFIRST
Definition: winuser.h:1777
#define WM_MOUSELAST
Definition: winuser.h:1804
#define WM_KEYFIRST
Definition: winuser.h:1717
#define WM_TIMER
Definition: winuser.h:1745
#define QS_MOUSE
Definition: winuser.h:895
#define WM_KEYLAST
Definition: winuser.h:1731

Referenced by co_IntGetPeekMessage(), and co_IntWaitMessage().

◆ handle_internal_events()

static LRESULT handle_internal_events ( PTHREADINFO  pti,
PWND  pWnd,
DWORD  dwQEvent,
LONG_PTR  ExtraInfo,
PMSG  pMsg 
)
static

Definition at line 862 of file message.c.

863{
864 LRESULT Result = 0;
865
866 switch(dwQEvent)
867 {
868 case POSTEVENT_NWE:
869 {
870 co_EVENT_CallEvents( pMsg->message, pMsg->hwnd, pMsg->wParam, ExtraInfo);
871 }
872 break;
873 case POSTEVENT_SAW:
874 {
875 //ERR("HIE : SAW : pti 0x%p hWnd 0x%p\n",pti,pMsg->hwnd);
876 IntActivateWindow((PWND)pMsg->wParam, pti, (HANDLE)pMsg->lParam, (DWORD)ExtraInfo);
877 }
878 break;
879 case POSTEVENT_DAW:
880 {
881 //ERR("HIE : DAW : pti 0x%p tid 0x%p hWndPrev 0x%p\n",pti,ExtraInfo,pMsg->hwnd);
882 IntDeactivateWindow(pti, (HANDLE)ExtraInfo);
883 }
884 break;
885 }
886 return Result;
887}
BOOL FASTCALL IntDeactivateWindow(PTHREADINFO pti, HANDLE tid)
Definition: focus.c:191
VOID FASTCALL IntActivateWindow(PWND Wnd, PTHREADINFO pti, HANDLE tid, DWORD Type)
Definition: focus.c:360
#define POSTEVENT_NWE
Definition: msgqueue.h:125
#define POSTEVENT_SAW
Definition: msgqueue.h:124
#define POSTEVENT_DAW
Definition: msgqueue.h:123
HWND hwnd
Definition: winuser.h:3117
LPARAM lParam
Definition: winuser.h:3120
LRESULT APIENTRY co_EVENT_CallEvents(DWORD event, HWND hwnd, UINT_PTR idObject, LONG_PTR idChild)
Definition: event.c:150

Referenced by co_IntPeekMessage().

◆ handle_internal_message()

static LRESULT handle_internal_message ( PWND  pWnd,
UINT  msg,
WPARAM  wparam,
LPARAM  lparam 
)
static

Definition at line 821 of file message.c.

822{
823 LRESULT lRes;
824// USER_REFERENCE_ENTRY Ref;
825// PTHREADINFO pti = PsGetCurrentThreadWin32Thread();
826
827 if (!pWnd || UserIsDesktopWindow(pWnd) || UserIsMessageWindow(pWnd))
828 return 0;
829
830 TRACE("Internal Event Msg 0x%x hWnd 0x%p\n", msg, UserHMGetHandle(pWnd));
831
832 switch(msg)
833 {
835 return co_WinPosShowWindow( pWnd, wparam );
837 {
838 PWINDOWPOS winpos = (PWINDOWPOS)lparam;
839 if (!winpos) return 0;
840 lRes = co_WinPosSetWindowPos( pWnd,
841 winpos->hwndInsertAfter,
842 winpos->x,
843 winpos->y,
844 winpos->cx,
845 winpos->cy,
846 winpos->flags);
848 return lRes;
849 }
851 {
852 TRACE("WM_ASYNC_DESTROYWINDOW\n");
853 if (pWnd->style & WS_CHILD)
855 else
857 }
858 }
859 return 0;
860}
@ lparam
Definition: SystemMenu.c:31
@ wparam
Definition: SystemMenu.c:30
#define msg(x)
Definition: auth_time.c:54
@ WM_ASYNC_SHOWWINDOW
Definition: msgqueue.h:117
@ WM_ASYNC_SETWINDOWPOS
Definition: msgqueue.h:118
@ WM_ASYNC_DESTROYWINDOW
Definition: msgqueue.h:120
PVOID NTAPI PsGetCurrentProcessWin32Process(VOID)
Definition: process.c:1183
BOOLEAN FASTCALL co_WinPosSetWindowPos(PWND Window, HWND WndInsertAfter, INT x, INT y, INT cx, INT cy, UINT flags)
Definition: winpos.c:1792
BOOLEAN FASTCALL co_WinPosShowWindow(PWND Wnd, INT Cmd)
Definition: winpos.c:2584
#define WS_CHILD
Definition: pedump.c:617
UINT flags
Definition: winuser.h:3597
HWND hwndInsertAfter
Definition: winuser.h:3592
DWORD style
Definition: ntuser.h:706
BOOLEAN co_UserDestroyWindow(PVOID Object)
Definition: window.c:2856
#define UserIsMessageWindow(pWnd)
Definition: desktop.h:197
#define UserIsDesktopWindow(pWnd)
Definition: desktop.h:194
#define USERTAG_SWP
Definition: tags.h:281
LRESULT co_UserFreeWindow(PWND Window, PPROCESSINFO ProcessData, PTHREADINFO ThreadData, BOOLEAN SendMessages)
Definition: window.c:576
struct _WINDOWPOS * PWINDOWPOS

Referenced by co_IntSendMessageTimeoutSingle(), and co_IntSendMessageWithCallBack().

◆ IdlePing()

VOID FASTCALL IdlePing ( VOID  )

Definition at line 576 of file message.c.

577{
579 PTHREADINFO pti;
580
582
583 if ( pti )
584 {
585 pti->pClientInfo->cSpins = 0; // Reset spins.
586
587 if ( pti->pDeskInfo && pti == gptiForeground )
588 {
591 {
593 }
594 }
595 }
596
597 TRACE("IdlePing ppi %p\n", ppi);
598 if ( ppi && ppi->InputIdleEvent )
599 {
600 TRACE("InputIdleEvent\n");
601 KeSetEvent( ppi->InputIdleEvent, IO_NO_INCREMENT, FALSE);
602 }
603}
#define KeSetEvent(pEvt, foo, foo2)
Definition: env_spec_w32.h:476
#define HOOKID_TO_FLAG(HookId)
Definition: hook.h:5
struct _DESKTOPINFO * pDeskInfo
Definition: win32.h:93
ULONG fsHooks
Definition: win32.h:117
PTHREADINFO gptiForeground
Definition: focus.c:15
#define WH_FOREGROUNDIDLE
Definition: winuser.h:41
#define IO_NO_INCREMENT
Definition: iotypes.h:598

Referenced by co_IntGetPeekMessage(), and IntMsqSetWakeMask().

◆ IdlePong()

VOID FASTCALL IdlePong ( VOID  )

Definition at line 606 of file message.c.

607{
609
610 TRACE("IdlePong ppi %p\n", ppi);
611 if ( ppi && ppi->InputIdleEvent )
612 {
613 KeClearEvent(ppi->InputIdleEvent);
614 }
615}
VOID NTAPI KeClearEvent(IN PKEVENT Event)
Definition: eventobj.c:22

Referenced by co_IntGetPeekMessage(), co_IntPeekMessage(), and IntMsqClearWakeMask().

◆ IntCallMsgFilter()

BOOL FASTCALL IntCallMsgFilter ( LPMSG  lpmsg,
INT  code 
)

Definition at line 2190 of file message.c.

2191{
2192 BOOL Ret = FALSE;
2193
2194 if ( co_HOOK_CallHooks( WH_SYSMSGFILTER, code, 0, (LPARAM)lpmsg))
2195 {
2196 Ret = TRUE;
2197 }
2198 else
2199 {
2200 Ret = co_HOOK_CallHooks( WH_MSGFILTER, code, 0, (LPARAM)lpmsg);
2201 }
2202 return Ret;
2203}
Definition: inflate.c:139
#define WH_MSGFILTER
Definition: winuser.h:29
#define WH_SYSMSGFILTER
Definition: winuser.h:36

Referenced by DefWndDoSizeMove(), DefWndStartSizeMove(), MENU_TrackMenu(), NC_DoButton(), and NC_HandleNCRButtonDown().

◆ IntCallWndProc()

static VOID FASTCALL IntCallWndProc ( PWND  Window,
HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam 
)
static

Definition at line 756 of file message.c.

757{
758 BOOL SameThread = FALSE;
759 CWPSTRUCT CWP;
760 PVOID pszClass = NULL, pszName = NULL;
761 CREATESTRUCTW Csw;
762
764 if ( !ISITHOOKED(WH_CALLWNDPROC) && !(Window->head.rpdesk->pDeskInfo->fsHooks & HOOKID_TO_FLAG(WH_CALLWNDPROC)) )
765 return;
766
768 SameThread = TRUE;
769
770 if ( Msg == WM_CREATE || Msg == WM_NCCREATE )
771 { //
772 // String pointers are in user heap space, like WH_CBT HCBT_CREATEWND.
773 //
774 if (!IntMsgCreateStructW( Window, &Csw, (CREATESTRUCTW *)lParam, &pszClass, &pszName ))
775 return;
776 lParam = (LPARAM)&Csw;
777 }
778
779 CWP.hwnd = hWnd;
780 CWP.message = Msg;
781 CWP.wParam = wParam;
782 CWP.lParam = lParam;
783 co_HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, SameThread, (LPARAM)&CWP );
784
785 if (pszName) UserHeapFree(pszName);
786 if (pszClass) UserHeapFree(pszClass);
787}
#define ISITHOOKED(HookId)
Definition: hook.h:6
LPARAM lParam
Definition: winuser.h:3028
WPARAM wParam
Definition: winuser.h:3029
UINT message
Definition: winuser.h:3030
static __inline BOOL UserHeapFree(PVOID lpMem)
Definition: usrheap.h:44
BOOL FASTCALL IntMsgCreateStructW(PWND Window, CREATESTRUCTW *pCsw, CREATESTRUCTW *Cs, PVOID *ppszClass, PVOID *ppszName)
Definition: message.c:646
#define WM_CREATE
Definition: winuser.h:1611
#define WM_NCCREATE
Definition: winuser.h:1686
#define WH_CALLWNDPROC
Definition: winuser.h:34

Referenced by co_IntSendMessageTimeoutSingle(), and co_IntSendMessageWithCallBack().

◆ IntCallWndProcRet()

static VOID FASTCALL IntCallWndProcRet ( PWND  Window,
HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam,
LRESULT uResult 
)
static

Definition at line 790 of file message.c.

791{
792 BOOL SameThread = FALSE;
793 CWPRETSTRUCT CWPR;
794 PVOID pszClass = NULL, pszName = NULL;
795 CREATESTRUCTW Csw;
796
797 if ( !ISITHOOKED(WH_CALLWNDPROCRET) && !(Window->head.rpdesk->pDeskInfo->fsHooks & HOOKID_TO_FLAG(WH_CALLWNDPROCRET)) )
798 return;
799
801 SameThread = TRUE;
802
803 if ( Msg == WM_CREATE || Msg == WM_NCCREATE )
804 {
805 if (!IntMsgCreateStructW( Window, &Csw, (CREATESTRUCTW *)lParam, &pszClass, &pszName ))
806 return;
807 lParam = (LPARAM)&Csw;
808 }
809
810 CWPR.hwnd = hWnd;
811 CWPR.message = Msg;
812 CWPR.wParam = wParam;
813 CWPR.lParam = lParam;
814 CWPR.lResult = uResult ? (*uResult) : 0;
815 co_HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, SameThread, (LPARAM)&CWPR );
816
817 if (pszName) UserHeapFree(pszName);
818 if (pszClass) UserHeapFree(pszClass);
819}
WPARAM wParam
Definition: winuser.h:3022
LRESULT lResult
Definition: winuser.h:3020
LPARAM lParam
Definition: winuser.h:3021
#define WH_CALLWNDPROCRET
Definition: winuser.h:42

Referenced by co_IntSendMessageTimeoutSingle(), and co_IntSendMessageWithCallBack().

◆ IntCleanupMessageImpl()

NTSTATUS FASTCALL IntCleanupMessageImpl ( VOID  )

Definition at line 47 of file message.c.

48{
49 return STATUS_SUCCESS;
50}

◆ IntDispatchMessage()

LRESULT FASTCALL IntDispatchMessage ( PMSG  pMsg)

Definition at line 890 of file message.c.

891{
892 LONG Time;
893 LRESULT retval = 0;
894 PTHREADINFO pti;
895 PWND Window = NULL;
896 BOOL DoCallBack = TRUE;
897
898 if (pMsg->hwnd)
899 {
901 if (!Window) return 0;
902 }
903
905
906 if ( Window && Window->head.pti != pti)
907 {
909 return 0;
910 }
911
912 if (((pMsg->message == WM_SYSTIMER) ||
913 (pMsg->message == WM_TIMER)) &&
914 (pMsg->lParam) )
915 {
916 if (pMsg->message == WM_TIMER)
917 {
918 if (ValidateTimerCallback(pti,pMsg->lParam))
919 {
921 retval = co_IntCallWindowProc((WNDPROC)pMsg->lParam,
922 TRUE,
923 pMsg->hwnd,
924 WM_TIMER,
925 pMsg->wParam,
926 (LPARAM)Time,
927 -1);
928 }
929 return retval;
930 }
931 else
932 {
933 PTIMER pTimer = FindSystemTimer(pMsg);
934 if (pTimer && pTimer->pfn)
935 {
937 pTimer->pfn(pMsg->hwnd, WM_SYSTIMER, (UINT)pMsg->wParam, Time);
938 }
939 return 0;
940 }
941 }
942 // Need a window!
943 if ( !Window ) return 0;
944
945 if (pMsg->message == WM_PAINT) Window->state |= WNDS_PAINTNOTPROCESSED;
946
947 if ( Window->state & WNDS_SERVERSIDEWINDOWPROC )
948 {
949 TRACE("Dispatch: Server Side Window Procedure\n");
950 switch(Window->fnid)
951 {
952 case FNID_DESKTOP:
953 DoCallBack = !DesktopWindowProc( Window,
954 pMsg->message,
955 pMsg->wParam,
956 pMsg->lParam,
957 &retval);
958 break;
959 case FNID_MESSAGEWND:
960 DoCallBack = !UserMessageWindowProc( Window,
961 pMsg->message,
962 pMsg->wParam,
963 pMsg->lParam,
964 &retval);
965 break;
966 case FNID_MENU:
967 DoCallBack = !PopupMenuWndProc( Window,
968 pMsg->message,
969 pMsg->wParam,
970 pMsg->lParam,
971 &retval);
972 break;
973 }
974 }
975
976 /* Since we are doing a callback on the same thread right away, there is
977 no need to copy the lparam to kernel mode and then back to usermode.
978 We just pretend it isn't a pointer */
979
980 if (DoCallBack)
981 retval = co_IntCallWindowProc( Window->lpfnWndProc,
982 !Window->Unicode,
983 pMsg->hwnd,
984 pMsg->message,
985 pMsg->wParam,
986 pMsg->lParam,
987 -1);
988
989 if ( pMsg->message == WM_PAINT &&
990 VerifyWnd(Window) &&
991 Window->state & WNDS_PAINTNOTPROCESSED ) // <--- Cleared, paint was already processed!
992 {
993 Window->state2 &= ~WNDS2_WMPAINTSENT;
994 /* send a WM_ERASEBKGND if the non-client area is still invalid */
995 ERR("Message WM_PAINT count %d Internal Paint Set? %s\n",Window->head.pti->cPaintsReady, Window->state & WNDS_INTERNALPAINT ? "TRUE" : "FALSE");
997 }
998
999 return retval;
1000}
#define WNDS_INTERNALPAINT
Definition: ntuser.h:617
#define WNDS_PAINTNOTPROCESSED
Definition: ntuser.h:627
static PLARGE_INTEGER Time
Definition: time.c:105
long LONG
Definition: pedump.c:60
Definition: timer.h:4
TIMERPROC pfn
Definition: timer.h:13
VOID FASTCALL IntPaintWindow(PWND Window)
Definition: painting.c:1184
BOOL FASTCALL ValidateTimerCallback(PTHREADINFO pti, LPARAM lParam)
Definition: timer.c:155
PTIMER FASTCALL FindSystemTimer(PMSG pMsg)
Definition: timer.c:131
PWND FASTCALL VerifyWnd(PWND pWnd)
Definition: window.c:88
#define ERROR_MESSAGE_SYNC_ONLY
Definition: winerror.h:681
LRESULT(CALLBACK * WNDPROC)(HWND, UINT, WPARAM, LPARAM)
Definition: winuser.h:2909

Referenced by DefWndDoSizeMove(), DefWndStartSizeMove(), DesktopThreadMain(), MENU_TrackMenu(), and NtUserDispatchMessage().

◆ IntGetQueueStatus()

DWORD APIENTRY IntGetQueueStatus ( DWORD  Changes)

Definition at line 2139 of file message.c.

2140{
2141 PTHREADINFO pti;
2142 DWORD Result;
2143
2145// wine:
2147
2148 /* High word, types of messages currently in the queue.
2149 Low word, types of messages that have been added to the queue and that
2150 are still in the queue
2151 */
2152 Result = MAKELONG(pti->pcti->fsChangeBits & Changes, pti->pcti->fsWakeBits & Changes);
2153
2154 pti->pcti->fsChangeBits &= ~Changes;
2155
2156 return Result;
2157}
#define QS_SMRESULT
Definition: undocuser.h:95

Referenced by NtUserCallOneParam(), and NtUserGetThreadState().

◆ IntInitMessageImpl()

NTSTATUS FASTCALL IntInitMessageImpl ( VOID  )

Definition at line 41 of file message.c.

42{
43 return STATUS_SUCCESS;
44}

◆ IntInitMessagePumpHook()

BOOL APIENTRY IntInitMessagePumpHook ( VOID  )

Definition at line 2160 of file message.c.

2161{
2163
2164 if (pti->pcti)
2165 {
2166 pti->pcti->dwcPumpHook++;
2167 return TRUE;
2168 }
2169 return FALSE;
2170}

Referenced by NtUserCallNoParam().

◆ IntMsgCreateStructW()

BOOL FASTCALL IntMsgCreateStructW ( PWND  Window,
CREATESTRUCTW pCsw,
CREATESTRUCTW Cs,
PVOID ppszClass,
PVOID ppszName 
)

Definition at line 646 of file message.c.

652{
653 PLARGE_STRING WindowName;
654 PUNICODE_STRING ClassName;
655 PVOID pszClass = NULL, pszName = NULL;
656
657 /* Fill the new CREATESTRUCTW */
658 RtlCopyMemory(pCsw, Cs, sizeof(CREATESTRUCTW));
659 pCsw->style = Window->style; /* HCBT_CREATEWND needs the real window style */
660
661 WindowName = (PLARGE_STRING) Cs->lpszName;
662 ClassName = (PUNICODE_STRING) Cs->lpszClass;
663
664 // Based on the assumption this is from "unicode source" user32, ReactOS, answer is yes.
665 if (!IS_ATOM(ClassName->Buffer))
666 {
667 if (ClassName->Length)
668 {
669 if (Window->state & WNDS_ANSICREATOR)
670 {
672 AnsiString.MaximumLength = (USHORT)RtlUnicodeStringToAnsiSize(ClassName)+sizeof(CHAR);
673 pszClass = UserHeapAlloc(AnsiString.MaximumLength);
674 if (!pszClass)
675 {
676 ERR("UserHeapAlloc() failed!\n");
677 return FALSE;
678 }
679 RtlZeroMemory(pszClass, AnsiString.MaximumLength);
680 AnsiString.Buffer = (PCHAR)pszClass;
682 }
683 else
684 {
686 UnicodeString.MaximumLength = ClassName->Length + sizeof(UNICODE_NULL);
687 pszClass = UserHeapAlloc(UnicodeString.MaximumLength);
688 if (!pszClass)
689 {
690 ERR("UserHeapAlloc() failed!\n");
691 return FALSE;
692 }
693 RtlZeroMemory(pszClass, UnicodeString.MaximumLength);
694 UnicodeString.Buffer = (PWSTR)pszClass;
696 }
697 *ppszClass = pszClass;
698 pCsw->lpszClass = UserHeapAddressToUser(pszClass);
699 }
700 else
701 {
702 pCsw->lpszClass = NULL;
703 }
704 }
705 else
706 {
707 pCsw->lpszClass = ClassName->Buffer;
708 }
709 if (WindowName->Length)
710 {
712 Name.Buffer = WindowName->Buffer;
713 Name.Length = (USHORT)min(WindowName->Length, MAXUSHORT); // FIXME: LARGE_STRING truncated
714 Name.MaximumLength = (USHORT)min(WindowName->MaximumLength, MAXUSHORT);
715
716 if (Window->state & WNDS_ANSICREATOR)
717 {
719 AnsiString.MaximumLength = (USHORT)RtlUnicodeStringToAnsiSize(&Name) + sizeof(CHAR);
720 pszName = UserHeapAlloc(AnsiString.MaximumLength);
721 if (!pszName)
722 {
723 ERR("UserHeapAlloc() failed!\n");
724 return FALSE;
725 }
726 RtlZeroMemory(pszName, AnsiString.MaximumLength);
727 AnsiString.Buffer = (PCHAR)pszName;
729 }
730 else
731 {
733 UnicodeString.MaximumLength = Name.Length + sizeof(UNICODE_NULL);
734 pszName = UserHeapAlloc(UnicodeString.MaximumLength);
735 if (!pszName)
736 {
737 ERR("UserHeapAlloc() failed!\n");
738 return FALSE;
739 }
740 RtlZeroMemory(pszName, UnicodeString.MaximumLength);
741 UnicodeString.Buffer = (PWSTR)pszName;
743 }
744 *ppszName = pszName;
745 pCsw->lpszName = UserHeapAddressToUser(pszName);
746 }
747 else
748 {
749 pCsw->lpszName = NULL;
750 }
751
752 return TRUE;
753}
struct NameRec_ * Name
Definition: cdprocs.h:460
#define CHAR(Char)
#define IS_ATOM(x)
Definition: class.h:3
@ AnsiString
Definition: dnslib.h:19
struct _LARGE_STRING * PLARGE_STRING
#define WNDS_ANSICREATOR
Definition: ntuser.h:634
#define PCHAR
Definition: match.c:90
#define min(a, b)
Definition: monoChain.cc:55
NTSYSAPI VOID NTAPI RtlCopyUnicodeString(PUNICODE_STRING DestinationString, PUNICODE_STRING SourceString)
NTSYSAPI NTSTATUS NTAPI RtlUnicodeStringToAnsiString(PANSI_STRING DestinationString, PUNICODE_STRING SourceString, BOOLEAN AllocateDestinationString)
unsigned short USHORT
Definition: pedump.c:61
SIGDN PWSTR * ppszName
Definition: shobjidl.idl:606
ULONG Length
Definition: ntuser.h:91
ULONG MaximumLength
Definition: ntuser.h:92
PVOID Buffer
Definition: ntuser.h:94
LPCWSTR lpszClass
Definition: winuser.h:2968
LPCWSTR lpszName
Definition: winuser.h:2967
uint16_t * PWSTR
Definition: typedefs.h:56
#define MAXUSHORT
Definition: typedefs.h:83
static __inline PVOID UserHeapAlloc(SIZE_T Bytes)
Definition: usrheap.h:34
static __inline PVOID UserHeapAddressToUser(PVOID lpMem)
Definition: usrheap.h:99
#define RtlUnicodeStringToAnsiSize(String)
Definition: rtlfuncs.h:1022

Referenced by co_UserCreateWindowEx(), IntCallWndProc(), and IntCallWndProcRet().

◆ IntSendTo()

PTHREADINFO FASTCALL IntSendTo ( PWND  Window,
PTHREADINFO  ptiCur,
UINT  Msg 
)

Definition at line 1381 of file message.c.

1382{
1383 if ( ptiCur )
1384 {
1385 if (!Window ||
1386 Window->head.pti == ptiCur )
1387 {
1388 return NULL;
1389 }
1390 }
1391 return Window ? Window->head.pti : NULL;
1392}

Referenced by co_IntDoSendMessage(), co_IntSendMessageTimeoutSingle(), and co_IntSendMessageWithCallBack().

◆ IntUninitMessagePumpHook()

BOOL APIENTRY IntUninitMessagePumpHook ( VOID  )

Definition at line 2173 of file message.c.

2174{
2176
2177 if (pti->pcti)
2178 {
2179 if (pti->pcti->dwcPumpHook <= 0)
2180 {
2181 return FALSE;
2182 }
2183 pti->pcti->dwcPumpHook--;
2184 return TRUE;
2185 }
2186 return FALSE;
2187}

Referenced by NtUserCallNoParam().

◆ is_message_broadcastable()

static BOOL is_message_broadcastable ( UINT  msg)
static

Definition at line 617 of file message.c.

618{
619 return msg < WM_USER || msg >= 0xc000;
620}

Referenced by co_IntSendMessageTimeout(), and UserPostMessage().

◆ is_pointer_message()

static int is_pointer_message ( UINT  message,
WPARAM  wparam 
)
inlinestatic

Definition at line 120 of file message.c.

121{
122 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
123 if (message == WM_DEVICECHANGE && !(wparam & 0x8000)) return FALSE;
124 return (message_pointer_flags[message / 32] & SET(message)) != 0;
125}
Definition: tftpd.h:60
static const unsigned int message_pointer_flags[]
Definition: message.c:58
#define SET(msg)
Definition: message.c:56

Referenced by DispatchMessageA(), DispatchMessageW(), NtUserMessageCall(), SendMessageCallbackA(), SendMessageCallbackW(), SendNotifyMessageA(), SendNotifyMessageW(), UserPostMessage(), UserPostThreadMessage(), and UserSendNotifyMessage().

◆ lParamMemorySize()

UINT lParamMemorySize ( UINT  Msg,
WPARAM  wParam,
LPARAM  lParam 
)

Definition at line 276 of file message.c.

277{
278 PMSGMEMORY MsgMemoryEntry = FindMsgMemory(Msg);
279 if(MsgMemoryEntry == NULL) return 0;
280 return MsgMemorySize(MsgMemoryEntry, wParam, lParam);
281}

Referenced by co_IntCallHookProc().

◆ MsgMemorySize()

static UINT FASTCALL MsgMemorySize ( PMSGMEMORY  MsgMemoryEntry,
WPARAM  wParam,
LPARAM  lParam 
)
static

Definition at line 187 of file message.c.

188{
189 CREATESTRUCTW *Cs;
190 PLARGE_STRING WindowName;
191 PUNICODE_STRING ClassName;
192 UINT Size = 0;
193
195 {
196 if (MMS_SIZE_WPARAM == MsgMemoryEntry->Size)
197 {
198 Size = (UINT)wParam;
199 }
200 else if (MMS_SIZE_WPARAMWCHAR == MsgMemoryEntry->Size)
201 {
202 Size = (UINT) (wParam * sizeof(WCHAR));
203 }
204 else if (MMS_SIZE_LPARAMSZ == MsgMemoryEntry->Size)
205 {
206 // WM_SETTEXT and WM_SETTINGCHANGE can be null!
207 if (!lParam)
208 {
209 TRACE("lParam is NULL!\n");
210 Size = 0;
211 }
212 else
213 Size = (UINT) ((wcslen((PWSTR) lParam) + 1) * sizeof(WCHAR));
214 }
215 else if (MMS_SIZE_SPECIAL == MsgMemoryEntry->Size)
216 {
217 switch(MsgMemoryEntry->Message)
218 {
219 case WM_CREATE:
220 case WM_NCCREATE:
221 Cs = (CREATESTRUCTW *) lParam;
222 WindowName = (PLARGE_STRING) Cs->lpszName;
223 ClassName = (PUNICODE_STRING) Cs->lpszClass;
224 Size = sizeof(CREATESTRUCTW) + WindowName->Length + sizeof(WCHAR);
225 if (IS_ATOM(ClassName->Buffer))
226 {
227 Size += sizeof(WCHAR) + sizeof(ATOM);
228 }
229 else
230 {
231 Size += sizeof(WCHAR) + ClassName->Length + sizeof(WCHAR);
232 }
233 break;
234
235 case WM_NCCALCSIZE:
236 Size = wParam ? sizeof(NCCALCSIZE_PARAMS) + sizeof(WINDOWPOS) : sizeof(RECT);
237 break;
238
239 case WM_COPYDATA:
240 {
242 Size = sizeof(COPYDATASTRUCT) + cds->cbData;
243 }
244 break;
245
246 case WM_DEVICECHANGE:
247 {
248 if ( lParam && (wParam & 0x8000) )
249 {
251 Size = header->dbch_size;
252 }
253 }
254 break;
255
256 default:
257 ASSERT(FALSE);
258 Size = 0;
259 break;
260 }
261 }
262 else
263 {
264 Size = MsgMemoryEntry->Size;
265 }
266 }
268 {
269 ERR("Exception caught in MsgMemorySize()! Status: 0x%x\n", _SEH2_GetExceptionCode());
270 Size = 0;
271 }
272 _SEH2_END;
273 return Size;
274}
WORD ATOM
Definition: dimm.idl:113
_CRTIMP size_t __cdecl wcslen(_In_z_ const wchar_t *_Str)
#define _SEH2_GetExceptionCode()
Definition: pseh2_64.h:165
UINT Size
Definition: message.c:138
#define MMS_SIZE_LPARAMSZ
Definition: message.c:130
#define MMS_SIZE_WPARAMWCHAR
Definition: message.c:129
#define MMS_SIZE_SPECIAL
Definition: message.c:131
#define MMS_SIZE_WPARAM
Definition: message.c:128
struct tagNCCALCSIZE_PARAMS NCCALCSIZE_PARAMS
struct tagCREATESTRUCTW CREATESTRUCTW
struct tagCOPYDATASTRUCT COPYDATASTRUCT
#define WM_COPYDATA
Definition: winuser.h:1667
#define WM_NCCALCSIZE
Definition: winuser.h:1688
ActualNumberDriverObjects * sizeof(PDRIVER_OBJECT)) PDRIVER_OBJECT *DriverObjectList

Referenced by co_IntSendMessageTimeoutSingle(), co_IntSendMessageWithCallBack(), CopyMsgToKernelMem(), CopyMsgToUserMem(), lParamMemorySize(), and PackParam().

◆ NtUserCallMsgFilter()

BOOL APIENTRY NtUserCallMsgFilter ( LPMSG  lpmsg,
INT  code 
)

Definition at line 2433 of file message.c.

2434{
2435 BOOL Ret = FALSE;
2436 MSG Msg;
2437
2438 _SEH2_TRY
2439 {
2440 ProbeForRead(lpmsg, sizeof(MSG), 1);
2441 RtlCopyMemory( &Msg, lpmsg, sizeof(MSG));
2442 }
2444 {
2445 _SEH2_YIELD(return FALSE);
2446 }
2447 _SEH2_END;
2448
2450
2452 {
2453 Ret = TRUE;
2454 }
2455 else
2456 {
2458 }
2459
2460 UserLeave();
2461
2462 _SEH2_TRY
2463 {
2464 ProbeForWrite(lpmsg, sizeof(MSG), 1);
2465 RtlCopyMemory(lpmsg, &Msg, sizeof(MSG));
2466 }
2468 {
2469 Ret = FALSE;
2470 }
2471 _SEH2_END;
2472
2473 return Ret;
2474}
VOID NTAPI ProbeForRead(IN CONST VOID *Address, IN SIZE_T Length, IN ULONG Alignment)
Definition: exintrin.c:102
VOID NTAPI ProbeForWrite(IN PVOID Address, IN SIZE_T Length, IN ULONG Alignment)
Definition: exintrin.c:143

Referenced by CallMsgFilterA(), and CallMsgFilterW().

◆ NtUserDispatchMessage()

LRESULT APIENTRY NtUserDispatchMessage ( PMSG  UnsafeMsgInfo)

Definition at line 2477 of file message.c.

2478{
2479 LRESULT Res = 0;
2480 MSG SafeMsg;
2481
2482 _SEH2_TRY
2483 {
2484 ProbeForRead(UnsafeMsgInfo, sizeof(MSG), 1);
2485 RtlCopyMemory(&SafeMsg, UnsafeMsgInfo, sizeof(MSG));
2486 }
2488 {
2490 _SEH2_YIELD(return FALSE);
2491 }
2492 _SEH2_END;
2493
2495
2496 Res = IntDispatchMessage(&SafeMsg);
2497
2498 UserLeave();
2499 return Res;
2500}
LRESULT FASTCALL IntDispatchMessage(PMSG pMsg)
Definition: message.c:890

Referenced by DispatchMessageA(), and DispatchMessageW().

◆ NtUserDragDetect()

BOOL APIENTRY NtUserDragDetect ( HWND  hWnd,
POINT  pt 
)

Functions

Definition at line 2209 of file message.c.

2212{
2213 MSG msg;
2214 RECT rect;
2215 ULONG wDragWidth, wDragHeight;
2216 BOOL Ret = FALSE;
2217
2218 TRACE("Enter NtUserDragDetect(%p)\n", hWnd);
2220
2221 wDragWidth = UserGetSystemMetrics(SM_CXDRAG);
2222 wDragHeight= UserGetSystemMetrics(SM_CYDRAG);
2223
2224 rect.left = pt.x - wDragWidth;
2225 rect.right = pt.x + wDragWidth;
2226
2227 rect.top = pt.y - wDragHeight;
2228 rect.bottom = pt.y + wDragHeight;
2229
2231
2232 for (;;)
2233 {
2237 {
2238 if ( msg.message == WM_LBUTTONUP )
2239 {
2241 goto Exit; // Return FALSE
2242 }
2243 if ( msg.message == WM_MOUSEMOVE )
2244 {
2245 POINT tmp;
2246 tmp.x = (short)LOWORD(msg.lParam);
2247 tmp.y = (short)HIWORD(msg.lParam);
2248 if( !RECTL_bPointInRect( &rect, tmp.x, tmp.y ) )
2249 {
2251 Ret = TRUE;
2252 goto Exit;
2253 }
2254 }
2255 if ( msg.message == WM_KEYDOWN )
2256 {
2257 if ( msg.wParam == VK_ESCAPE )
2258 {
2260 Ret = TRUE;
2261 goto Exit;
2262 }
2263 }
2264 if ( msg.message == WM_QUEUESYNC )
2265 {
2267 }
2268 }
2269 co_IntWaitMessage(NULL, 0, 0);
2270 }
2271
2272Exit:
2273 TRACE("Leave NtUserDragDetect, ret=%i\n", Ret);
2274 UserLeave();
2275 return Ret;
2276}
unsigned short(__cdecl typeof(TIFFCurrentDirectory))(struct tiff *)
Definition: typeof.h:94
#define pt(x, y)
Definition: drawing.c:79
HWND FASTCALL co_UserSetCapture(HWND hWnd)
Definition: focus.c:1460
#define LOWORD(l)
Definition: pedump.c:82
static void Exit(void)
Definition: sock.c:1330
& rect
Definition: startmenu.cpp:1413
long y
Definition: polytest.cpp:48
long x
Definition: polytest.cpp:48
uint32_t ULONG
Definition: typedefs.h:59
FORCEINLINE BOOL RECTL_bPointInRect(_In_ const RECTL *prcl, _In_ INT x, _In_ INT y)
Definition: rect.h:52
BOOL FASTCALL co_IntWaitMessage(PWND Window, UINT MsgFilterMin, UINT MsgFilterMax)
Definition: message.c:1180
BOOL APIENTRY co_IntGetPeekMessage(PMSG pMsg, HWND hWnd, UINT MsgFilterMin, UINT MsgFilterMax, UINT RemoveMsg, BOOL bGMSG)
Definition: message.c:1226
LONG NTAPI UserGetSystemMetrics(ULONG Index)
Definition: metric.c:214
#define SM_CXDRAG
Definition: winuser.h:1031
#define WM_MOUSEMOVE
Definition: winuser.h:1778
#define WH_CBT
Definition: winuser.h:35
#define WM_QUEUESYNC
Definition: winuser.h:1642
#define HCBT_QS
Definition: winuser.h:57
#define WM_LBUTTONUP
Definition: winuser.h:1780
#define WM_KEYDOWN
Definition: winuser.h:1718
#define SM_CYDRAG
Definition: winuser.h:1032
#define VK_ESCAPE
Definition: winuser.h:2217

Referenced by DragDetect().

◆ NtUserGetMessage()

BOOL APIENTRY NtUserGetMessage ( PMSG  pMsg,
HWND  hWnd,
UINT  MsgFilterMin,
UINT  MsgFilterMax 
)

Definition at line 2347 of file message.c.

2351{
2352 MSG Msg;
2353 BOOL Ret;
2354
2355 if ( (MsgFilterMin|MsgFilterMax) & ~WM_MAXIMUM )
2356 {
2358 return FALSE;
2359 }
2360
2362
2363 RtlZeroMemory(&Msg, sizeof(MSG));
2364
2365 Ret = co_IntGetPeekMessage(&Msg, hWnd, MsgFilterMin, MsgFilterMax, PM_REMOVE, TRUE);
2366
2367 UserLeave();
2368
2369 if (Ret)
2370 {
2371 _SEH2_TRY
2372 {
2373 ProbeForWrite(pMsg, sizeof(MSG), 1);
2374 RtlCopyMemory(pMsg, &Msg, sizeof(MSG));
2375 }
2377 {
2379 Ret = FALSE;
2380 }
2381 _SEH2_END;
2382 }
2383
2384 if ((INT)Ret != -1)
2385 Ret = Ret ? (WM_QUIT != pMsg->message) : FALSE;
2386
2387 return Ret;
2388}
#define WM_MAXIMUM
Definition: undocuser.h:64

Referenced by GetMessageA(), and GetMessageW().

◆ NtUserMessageCall()

BOOL APIENTRY NtUserMessageCall ( HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam,
ULONG_PTR  ResultInfo,
DWORD  dwType,
BOOL  Ansi 
)

Definition at line 2540 of file message.c.

2547{
2548 LRESULT lResult = 0;
2549 BOOL Ret = FALSE;
2550 PWND Window = NULL;
2552
2554
2555 switch(dwType)
2556 {
2557 case FNID_SCROLLBAR:
2558 {
2559 lResult = ScrollBarWndProc(hWnd, Msg, wParam, lParam);
2560 break;
2561 }
2562 case FNID_DESKTOP:
2563 {
2565 if (Window)
2566 {
2567 //ERR("FNID_DESKTOP IN\n");
2568 Ret = DesktopWindowProc(Window, Msg, wParam, lParam, &lResult);
2569 //ERR("FNID_DESKTOP OUT\n");
2570 }
2571 break;
2572 }
2573 case FNID_MENU:
2574 {
2576 if (Window)
2577 {
2578 Ret = PopupMenuWndProc( Window, Msg, wParam, lParam, &lResult);
2579 }
2580 break;
2581 }
2582 case FNID_MESSAGEWND:
2583 {
2585 if (Window)
2586 {
2587 Ret = !UserMessageWindowProc(Window, Msg, wParam, lParam, &lResult);
2588 }
2589 break;
2590 }
2591 case FNID_DEFWINDOWPROC:
2592 /* Validate input */
2593 if (hWnd)
2594 {
2596 if (!Window)
2597 {
2598 UserLeave();
2599 return FALSE;
2600 }
2601 UserRefObjectCo(Window, &Ref);
2602 }
2603 lResult = IntDefWindowProc(Window, Msg, wParam, lParam, Ansi);
2604 Ret = TRUE;
2605 if (hWnd)
2607 break;
2610 break;
2612 {
2613 BROADCASTPARM parm, *retparam;
2614 DWORD_PTR RetVal = 0;
2615
2616 if (ResultInfo)
2617 {
2618 _SEH2_TRY
2619 {
2620 ProbeForWrite((PVOID)ResultInfo, sizeof(BROADCASTPARM), 1);
2621 RtlCopyMemory(&parm, (PVOID)ResultInfo, sizeof(BROADCASTPARM));
2622 }
2624 {
2625 _SEH2_YIELD(break);
2626 }
2627 _SEH2_END;
2628 }
2629 else
2630 break;
2631
2632 if ( parm.recipients & BSM_ALLDESKTOPS ||
2634 {
2635 PLIST_ENTRY DesktopEntry;
2636 PDESKTOP rpdesk;
2637 HWND *List, hwndDenied = NULL;
2638 HDESK hDesk = NULL;
2639 PWND pwnd, pwndDesk;
2640 ULONG i;
2641 UINT fuFlags;
2642
2643 for (DesktopEntry = InputWindowStation->DesktopListHead.Flink;
2644 DesktopEntry != &InputWindowStation->DesktopListHead;
2645 DesktopEntry = DesktopEntry->Flink)
2646 {
2647 rpdesk = CONTAINING_RECORD(DesktopEntry, DESKTOP, ListEntry);
2648 pwndDesk = rpdesk->pDeskInfo->spwnd;
2649 List = IntWinListChildren(pwndDesk);
2650
2651 if (parm.flags & BSF_QUERY)
2652 {
2653 if (List != NULL)
2654 {
2655 if (parm.flags & BSF_FORCEIFHUNG || parm.flags & BSF_NOHANG)
2656 {
2657 fuFlags = SMTO_ABORTIFHUNG;
2658 }
2659 else if (parm.flags & BSF_NOTIMEOUTIFNOTHUNG)
2660 {
2661 fuFlags = SMTO_NOTIMEOUTIFNOTHUNG;
2662 }
2663 else
2664 {
2665 fuFlags = SMTO_NORMAL;
2666 }
2668 Msg,
2669 wParam,
2670 lParam,
2671 fuFlags,
2672 2000,
2673 &RetVal);
2674 Ret = TRUE;
2675 for (i = 0; List[i]; i++)
2676 {
2677 pwnd = UserGetWindowObject(List[i]);
2678 if (!pwnd) continue;
2679
2680 if ( pwnd->fnid == FNID_MENU ||
2682 continue;
2683
2684 if ( parm.flags & BSF_IGNORECURRENTTASK )
2685 {
2686 if ( pwnd->head.pti == gptiCurrent )
2687 continue;
2688 }
2690 Msg,
2691 wParam,
2692 lParam,
2693 fuFlags,
2694 2000,
2695 &RetVal);
2696
2697 if (!RetVal && EngGetLastError() == ERROR_TIMEOUT)
2698 {
2699 if (!(parm.flags & BSF_FORCEIFHUNG))
2700 Ret = FALSE;
2701 }
2702 if (RetVal == BROADCAST_QUERY_DENY)
2703 {
2704 hwndDenied = List[i];
2705 hDesk = UserHMGetHandle(pwndDesk);
2706 Ret = FALSE;
2707 }
2708 }
2710 _SEH2_TRY
2711 {
2712 retparam = (PBROADCASTPARM) ResultInfo;
2713 retparam->hDesk = hDesk;
2714 retparam->hWnd = hwndDenied;
2715 }
2717 {
2718 _SEH2_YIELD(break);
2719 }
2720 _SEH2_END;
2721 if (!Ret) break; // Have a hit! Let everyone know!
2722 }
2723 }
2724 else if (parm.flags & BSF_POSTMESSAGE)
2725 {
2726 if (List != NULL)
2727 {
2729
2730 for (i = 0; List[i]; i++)
2731 {
2732 pwnd = UserGetWindowObject(List[i]);
2733 if (!pwnd) continue;
2734
2735 if ( pwnd->fnid == FNID_MENU ||
2737 continue;
2738
2739 if ( parm.flags & BSF_IGNORECURRENTTASK )
2740 {
2741 if ( pwnd->head.pti == gptiCurrent )
2742 continue;
2743 }
2745 }
2747 }
2748 Ret = TRUE;
2749 }
2750 else
2751 {
2752 if (List != NULL)
2753 {
2755
2756 for (i = 0; List[i]; i++)
2757 {
2758 pwnd = UserGetWindowObject(List[i]);
2759 if (!pwnd) continue;
2760
2761 if ( pwnd->fnid == FNID_MENU ||
2763 continue;
2764
2765 if ( parm.flags & BSF_IGNORECURRENTTASK )
2766 {
2767 if ( pwnd->head.pti == gptiCurrent )
2768 continue;
2769 }
2771 }
2773 }
2774 if (lParam && !wParam && _wcsicmp((WCHAR*)lParam, L"Environment") == 0)
2775 {
2776 /* Handle Broadcast of WM_SETTINGCHAGE for Environment */
2778 0, (LPARAM)L"Environment", 0);
2779 }
2780 Ret = TRUE;
2781 }
2782 }
2783 }
2784 else if (parm.recipients & BSM_APPLICATIONS)
2785 {
2786 HWND *List, hwndDenied = NULL;
2787 HDESK hDesk = NULL;
2788 PWND pwnd, pwndDesk;
2789 ULONG i;
2790 UINT fuFlags;
2791
2792 pwndDesk = UserGetDesktopWindow();
2793 List = IntWinListChildren(pwndDesk);
2794
2795 if (parm.flags & BSF_QUERY)
2796 {
2797 if (List != NULL)
2798 {
2799 if (parm.flags & BSF_FORCEIFHUNG || parm.flags & BSF_NOHANG)
2800 {
2801 fuFlags = SMTO_ABORTIFHUNG;
2802 }
2803 else if (parm.flags & BSF_NOTIMEOUTIFNOTHUNG)
2804 {
2805 fuFlags = SMTO_NOTIMEOUTIFNOTHUNG;
2806 }
2807 else
2808 {
2809 fuFlags = SMTO_NORMAL;
2810 }
2812 Msg,
2813 wParam,
2814 lParam,
2815 fuFlags,
2816 2000,
2817 &RetVal);
2818 Ret = TRUE;
2819 for (i = 0; List[i]; i++)
2820 {
2821 pwnd = UserGetWindowObject(List[i]);
2822 if (!pwnd) continue;
2823
2824 if ( pwnd->fnid == FNID_MENU ||
2826 continue;
2827
2828 if ( parm.flags & BSF_IGNORECURRENTTASK )
2829 {
2830 if ( pwnd->head.pti == gptiCurrent )
2831 continue;
2832 }
2834 Msg,
2835 wParam,
2836 lParam,
2837 fuFlags,
2838 2000,
2839 &RetVal);
2840
2841 if (!RetVal && EngGetLastError() == ERROR_TIMEOUT)
2842 {
2843 if (!(parm.flags & BSF_FORCEIFHUNG))
2844 Ret = FALSE;
2845 }
2846 if (RetVal == BROADCAST_QUERY_DENY)
2847 {
2848 hwndDenied = List[i];
2849 hDesk = UserHMGetHandle(pwndDesk);
2850 Ret = FALSE;
2851 }
2852 }
2854 _SEH2_TRY
2855 {
2856 retparam = (PBROADCASTPARM) ResultInfo;
2857 retparam->hDesk = hDesk;
2858 retparam->hWnd = hwndDenied;
2859 }
2861 {
2862 _SEH2_YIELD(break);
2863 }
2864 _SEH2_END;
2865 }
2866 }
2867 else if (parm.flags & BSF_POSTMESSAGE)
2868 {
2869 if (List != NULL)
2870 {
2872
2873 for (i = 0; List[i]; i++)
2874 {
2875 pwnd = UserGetWindowObject(List[i]);
2876 if (!pwnd) continue;
2877
2878 if ( pwnd->fnid == FNID_MENU ||
2880 continue;
2881
2882 if ( parm.flags & BSF_IGNORECURRENTTASK )
2883 {
2884 if ( pwnd->head.pti == gptiCurrent )
2885 continue;
2886 }
2888 }
2890 }
2891 Ret = TRUE;
2892 }
2893 else
2894 {
2895 if (List != NULL)
2896 {
2898
2899 for (i = 0; List[i]; i++)
2900 {
2901 pwnd = UserGetWindowObject(List[i]);
2902 if (!pwnd) continue;
2903
2904 if ( pwnd->fnid == FNID_MENU ||
2906 continue;
2907
2908 if ( parm.flags & BSF_IGNORECURRENTTASK )
2909 {
2910 if ( pwnd->head.pti == gptiCurrent )
2911 continue;
2912 }
2914 }
2916 }
2917 Ret = TRUE;
2918 }
2919 }
2920 }
2921 break;
2923 {
2924 CALL_BACK_INFO CallBackInfo;
2925 ULONG_PTR uResult;
2926
2927 _SEH2_TRY
2928 {
2929 ProbeForRead((PVOID)ResultInfo, sizeof(CALL_BACK_INFO), 1);
2930 RtlCopyMemory(&CallBackInfo, (PVOID)ResultInfo, sizeof(CALL_BACK_INFO));
2931 }
2933 {
2934 _SEH2_YIELD(break);
2935 }
2936 _SEH2_END;
2937
2939 {
2941 break;
2942 }
2943
2945 CallBackInfo.CallBack, CallBackInfo.Context, &uResult)))
2946 {
2947 ERR("Callback failure!\n");
2948 }
2949 }
2950 break;
2951 case FNID_SENDMESSAGE:
2952 {
2953 lResult = co_IntDoSendMessage(hWnd, Msg, wParam, lParam, 0);
2954 Ret = TRUE;
2955
2956 if (ResultInfo)
2957 {
2958 _SEH2_TRY
2959 {
2960 ProbeForWrite((PVOID)ResultInfo, sizeof(ULONG_PTR), 1);
2961 RtlCopyMemory((PVOID)ResultInfo, &lResult, sizeof(ULONG_PTR));
2962 }
2964 {
2965 Ret = FALSE;
2966 _SEH2_YIELD(break);
2967 }
2968 _SEH2_END;
2969 }
2970 break;
2971 }
2972 case FNID_SENDMESSAGEFF:
2974 {
2975 DOSENDMESSAGE dsm, *pdsm = (PDOSENDMESSAGE)ResultInfo;
2976 if (ResultInfo)
2977 {
2978 _SEH2_TRY
2979 {
2980 ProbeForRead(pdsm, sizeof(DOSENDMESSAGE), 1);
2981 RtlCopyMemory(&dsm, pdsm, sizeof(DOSENDMESSAGE));
2982 }
2984 {
2985 _SEH2_YIELD(break);
2986 }
2987 _SEH2_END;
2988 }
2989
2990 Ret = co_IntDoSendMessage( hWnd, Msg, wParam, lParam, pdsm ? &dsm : NULL );
2991
2992 if (pdsm)
2993 {
2994 _SEH2_TRY
2995 {
2996 ProbeForWrite(pdsm, sizeof(DOSENDMESSAGE), 1);
2997 RtlCopyMemory(pdsm, &dsm, sizeof(DOSENDMESSAGE));
2998 }
3000 {
3001 Ret = FALSE;
3002 _SEH2_YIELD(break);
3003 }
3004 _SEH2_END;
3005 }
3006 break;
3007 }
3008 // CallNextHook bypass.
3009 case FNID_CALLWNDPROC:
3011 {
3012 PTHREADINFO pti;
3014 PHOOK NextObj, Hook;
3015
3016 pti = GetW32ThreadInfo();
3017
3018 Hook = pti->sphkCurrent;
3019
3020 if (!Hook) break;
3021
3022 NextObj = Hook->phkNext;
3023 ClientInfo = pti->pClientInfo;
3024 _SEH2_TRY
3025 {
3026 ClientInfo->phkCurrent = NextObj;
3027 }
3029 {
3030 ClientInfo = NULL;
3031 }
3032 _SEH2_END;
3033
3034 if (!ClientInfo || !NextObj) break;
3035
3036 NextObj->phkNext = IntGetNextHook(NextObj);
3037
3038 if ( Hook->HookId == WH_CALLWNDPROC)
3039 {
3040 CWPSTRUCT CWP;
3041 CWP.hwnd = hWnd;
3042 CWP.message = Msg;
3043 CWP.wParam = wParam;
3044 CWP.lParam = lParam;
3045 TRACE("WH_CALLWNDPROC: Hook %p NextHook %p\n", Hook, NextObj);
3046
3047 lResult = co_IntCallHookProc( Hook->HookId,
3048 HC_ACTION,
3049 ((ClientInfo->CI_flags & CI_CURTHPRHOOK) ? 1 : 0),
3050 (LPARAM)&CWP,
3051 Hook->Proc,
3052 Hook->ihmod,
3053 Hook->offPfn,
3054 Hook->Ansi,
3055 &Hook->ModuleName);
3056 }
3057 else
3058 {
3059 CWPRETSTRUCT CWPR;
3060 CWPR.hwnd = hWnd;
3061 CWPR.message = Msg;
3062 CWPR.wParam = wParam;
3063 CWPR.lParam = lParam;
3064 CWPR.lResult = ClientInfo->dwHookData;
3065
3066 lResult = co_IntCallHookProc( Hook->HookId,
3067 HC_ACTION,
3068 ((ClientInfo->CI_flags & CI_CURTHPRHOOK) ? 1 : 0),
3069 (LPARAM)&CWPR,
3070 Hook->Proc,
3071 Hook->ihmod,
3072 Hook->offPfn,
3073 Hook->Ansi,
3074 &Hook->ModuleName);
3075 }
3076 }
3077 break;
3078 }
3079
3080 switch(dwType)
3081 {
3082 case FNID_DEFWINDOWPROC:
3083 case FNID_CALLWNDPROC:
3085 case FNID_SCROLLBAR:
3086 case FNID_DESKTOP:
3087 case FNID_MENU:
3088 if (ResultInfo)
3089 {
3090 _SEH2_TRY
3091 {
3092 ProbeForWrite((PVOID)ResultInfo, sizeof(LRESULT), 1);
3093 RtlCopyMemory((PVOID)ResultInfo, &lResult, sizeof(LRESULT));
3094 }
3096 {
3097 Ret = FALSE;
3098 }
3099 _SEH2_END;
3100 }
3101 break;
3102 default:
3103 break;
3104 }
3105
3106 UserLeave();
3107
3108 return Ret;
3109}
#define BSF_POSTMESSAGE
Definition: dbt.h:58
#define BSF_NOTIMEOUTIFNOTHUNG
Definition: dbt.h:57
#define BSF_NOHANG
Definition: dbt.h:56
#define BSF_IGNORECURRENTTASK
Definition: dbt.h:55
#define BSF_QUERY
Definition: dbt.h:59
#define BSM_APPLICATIONS
Definition: dbt.h:48
#define BSF_FORCEIFHUNG
Definition: dbt.h:54
#define BSM_ALLDESKTOPS
Definition: dbt.h:49
#define BSM_ALLCOMPONENTS
Definition: dbt.h:47
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define FNID_SENDMESSAGEFF
Definition: ntuser.h:883
#define FNID_SCROLLBAR
Definition: ntuser.h:859
#define FNID_DEFWINDOWPROC
Definition: ntuser.h:863
#define FNID_SENDMESSAGECALLBACK
Definition: ntuser.h:890
struct _THREADINFO * GetW32ThreadInfo(VOID)
Definition: misc.c:807
#define FNID_SENDMESSAGEWTOOPTION
Definition: ntuser.h:885
#define FNID_CALLWNDPROCRET
Definition: ntuser.h:877
#define FNID_CALLWNDPROC
Definition: ntuser.h:876
#define CI_CURTHPRHOOK
Definition: ntuser.h:304
struct tagDOSENDMESSAGE * PDOSENDMESSAGE
#define FNID_SENDMESSAGE
Definition: ntuser.h:882
struct _BROADCASTPARM * PBROADCASTPARM
#define FNID_BROADCASTSYSTEMMESSAGE
Definition: ntuser.h:887
#define FNID_SENDNOTIFYMESSAGE
Definition: ntuser.h:889
CLIENT_DATA ClientInfo
LRESULT FASTCALL IntDefWindowProc(PWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam, BOOL Ansi)
Definition: defwnd.c:535
PHOOK FASTCALL IntGetNextHook(PHOOK Hook)
Definition: hook.c:995
PWINSTATION_OBJECT InputWindowStation
Definition: winsta.c:21
#define L(x)
Definition: ntvdm.h:50
_Check_return_ _CRTIMP int __cdecl _wcsicmp(_In_z_ const wchar_t *_Str1, _In_z_ const wchar_t *_Str2)
DWORD recipients
Definition: ntuser.h:1109
DWORD flags
Definition: ntuser.h:1108
HDESK hDesk
Definition: ntuser.h:1110
SENDASYNCPROC CallBack
Definition: callback.h:45
ULONG_PTR Context
Definition: callback.h:46
struct _WND * spwnd
Definition: ntuser.h:137
PDESKTOPINFO pDeskInfo
Definition: desktop.h:8
Definition: typedefs.h:120
struct _LIST_ENTRY * Flink
Definition: typedefs.h:121
struct tagHOOK * sphkCurrent
Definition: win32.h:118
LIST_ENTRY DesktopListHead
Definition: winsta.h:19
THRDESKHEAD head
Definition: ntuser.h:695
INT_PTR ihmod
Definition: ntuser.h:245
struct tagHOOK * phkNext
Definition: ntuser.h:241
HOOKPROC Proc
Definition: ntuser.h:250
ULONG_PTR offPfn
Definition: ntuser.h:243
int HookId
Definition: ntuser.h:242
BOOLEAN Ansi
Definition: ntuser.h:251
UNICODE_STRING ModuleName
Definition: ntuser.h:252
uint32_t DWORD_PTR
Definition: typedefs.h:65
#define CONTAINING_RECORD(address, type, field)
Definition: typedefs.h:260
_Must_inspect_result_ _In_ WDFCMRESLIST List
Definition: wdfresource.h:550
LRESULT APIENTRY co_IntCallHookProc(INT HookId, INT Code, WPARAM wParam, LPARAM lParam, HOOKPROC Proc, INT Mod, ULONG_PTR offPfn, BOOLEAN Ansi, PUNICODE_STRING ModuleName)
Definition: callback.c:508
static int is_pointer_message(UINT message, WPARAM wparam)
Definition: message.c:120
static LRESULT FASTCALL co_IntDoSendMessage(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, PDOSENDMESSAGE dsm)
Definition: message.c:2004
BOOL FASTCALL UserSendNotifyMessage(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
Definition: message.c:2090
BOOL FASTCALL UserPostMessage(HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam)
Definition: message.c:1395
LRESULT APIENTRY ScrollBarWndProc(HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam)
Definition: scrollbar.c:1123
ENGAPI ULONG APIENTRY EngGetLastError(VOID)
Definition: error.c:9
#define WM_SETTINGCHANGE
Definition: winuser.h:1632
#define BROADCAST_QUERY_DENY
Definition: winuser.h:178

Referenced by CallNextHookEx(), DefWndHandleSysCommand(), DesktopWndProcW(), IntBroadcastSystemMessage(), IntScrollCreateScrollBar(), MenuWindowProcA(), MenuWindowProcW(), PopupMenuWndProcW(), SendMessageA(), SendMessageCallbackA(), SendMessageCallbackW(), SendMessageTimeoutA(), SendMessageTimeoutW(), SendMessageW(), SendNotifyMessageW(), and User32DefWindowProc().

◆ NtUserPeekMessage()

BOOL APIENTRY NtUserPeekMessage ( PMSG  pMsg,
HWND  hWnd,
UINT  MsgFilterMin,
UINT  MsgFilterMax,
UINT  RemoveMsg 
)

Definition at line 2391 of file message.c.

2396{
2397 MSG Msg;
2398 BOOL Ret;
2399
2400 if ( RemoveMsg & PM_BADMSGFLAGS )
2401 {
2403 return FALSE;
2404 }
2405
2407
2408 RtlZeroMemory(&Msg, sizeof(MSG));
2409
2410 Ret = co_IntGetPeekMessage(&Msg, hWnd, MsgFilterMin, MsgFilterMax, RemoveMsg, FALSE);
2411
2412 UserLeave();
2413
2414 if (Ret)
2415 {
2416 _SEH2_TRY
2417 {
2418 ProbeForWrite(pMsg, sizeof(MSG), 1);
2419 RtlCopyMemory(pMsg, &Msg, sizeof(MSG));
2420 }
2422 {
2424 Ret = FALSE;
2425 }
2426 _SEH2_END;
2427 }
2428
2429 return Ret;
2430}
#define PM_BADMSGFLAGS
Definition: message.c:14
#define ERROR_INVALID_FLAGS
Definition: winerror.h:583

Referenced by PeekMessageWorker().

◆ NtUserPostMessage()

BOOL APIENTRY NtUserPostMessage ( HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam 
)

Definition at line 2279 of file message.c.

2283{
2284 BOOL ret;
2285
2287
2289
2290 UserLeave();
2291
2292 return ret;
2293}
int ret

Referenced by PostMessageA(), and PostMessageW().

◆ NtUserPostThreadMessage()

BOOL APIENTRY NtUserPostThreadMessage ( DWORD  idThread,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam 
)

Definition at line 2296 of file message.c.

2300{
2301 BOOL ret = FALSE;
2302 PETHREAD peThread;
2303 PTHREADINFO pThread;
2305
2307
2308 Status = PsLookupThreadByThreadId(UlongToHandle(idThread), &peThread);
2309
2310 if ( Status == STATUS_SUCCESS )
2311 {
2312 pThread = (PTHREADINFO)peThread->Tcb.Win32Thread;
2313 if( !pThread ||
2314 !pThread->MessageQueue ||
2315 (pThread->TIF_flags & TIF_INCLEANUP))
2316 {
2317 ObDereferenceObject( peThread );
2318 goto exit;
2319 }
2320 ret = UserPostThreadMessage( pThread, Msg, wParam, lParam);
2321 ObDereferenceObject( peThread );
2322 }
2323 else
2324 {
2326 }
2327exit:
2328 UserLeave();
2329 return ret;
2330}
#define UlongToHandle(ul)
Definition: basetsd.h:97
NTSTATUS NTAPI PsLookupThreadByThreadId(IN HANDLE ThreadId, OUT PETHREAD *Thread)
Definition: thread.c:643
struct _THREADINFO * PTHREADINFO
Definition: ntwin32.h:6
#define exit(n)
Definition: config.h:202
KTHREAD Tcb
Definition: pstypes.h:1104
PVOID Win32Thread
Definition: ketypes.h:1866
BOOL FASTCALL UserPostThreadMessage(PTHREADINFO pti, UINT Msg, WPARAM wParam, LPARAM lParam)
Definition: message.c:1358
#define ObDereferenceObject
Definition: obfuncs.h:203

Referenced by PostThreadMessageA(), and PostThreadMessageW().

◆ NtUserTranslateMessage()

BOOL APIENTRY NtUserTranslateMessage ( LPMSG  lpMsg,
UINT  flags 
)

Definition at line 2503 of file message.c.

2504{
2505 MSG SafeMsg;
2506 BOOL Ret;
2507 PWND pWnd;
2508
2509 _SEH2_TRY
2510 {
2511 ProbeForRead(lpMsg, sizeof(MSG), 1);
2512 RtlCopyMemory(&SafeMsg, lpMsg, sizeof(MSG));
2513 }
2515 {
2517 _SEH2_YIELD(return FALSE);
2518 }
2519 _SEH2_END;
2520
2522 pWnd = UserGetWindowObject(SafeMsg.hwnd);
2523 if (pWnd) // Must have a window!
2524 {
2525 Ret = IntTranslateKbdMessage(&SafeMsg, flags);
2526 }
2527 else
2528 {
2529 TRACE("No Window for Translate. hwnd 0x%p Msg %u\n", SafeMsg.hwnd, SafeMsg.message);
2530 Ret = FALSE;
2531 }
2532 UserLeave();
2533
2534 return Ret;
2535}
GLbitfield flags
Definition: glext.h:7161
BOOL FASTCALL IntTranslateKbdMessage(LPMSG lpMsg, UINT flags)
Definition: keyboard.c:1276

Referenced by TranslateMessageEx().

◆ NtUserWaitForInputIdle()

DWORD APIENTRY NtUserWaitForInputIdle ( IN HANDLE  hProcess,
IN DWORD  dwMilliseconds,
IN BOOL  bSharedWow 
)

Definition at line 3116 of file message.c.

3119{
3121 PPROCESSINFO W32Process;
3122 PTHREADINFO pti;
3124 HANDLE Handles[3];
3127
3129
3133 UserMode,
3134 (PVOID*)&Process,
3135 NULL);
3136
3137 if (!NT_SUCCESS(Status))
3138 {
3139 UserLeave();
3141 return WAIT_FAILED;
3142 }
3143
3145
3146 W32Process = (PPROCESSINFO)Process->Win32Process;
3147
3149 !W32Process ||
3150 pti->ppi == W32Process)
3151 {
3153 UserLeave();
3155 return WAIT_FAILED;
3156 }
3157
3158 Handles[0] = Process;
3159 Handles[1] = W32Process->InputIdleEvent;
3160 Handles[2] = pti->pEventQueueServer; // IntMsqSetWakeMask returns hEventQueueClient
3161
3162 if (!Handles[1])
3163 {
3165 UserLeave();
3166 return STATUS_SUCCESS; /* no event to wait on */
3167 }
3168
3169 if (dwMilliseconds != INFINITE)
3170 Timeout.QuadPart = (LONGLONG) dwMilliseconds * (LONGLONG) -10000;
3171
3173 W32Process->W32PF_flags |= W32PF_WAITFORINPUTIDLE;
3174 for (pti = W32Process->ptiList; pti; pti = pti->ptiSibling)
3175 {
3177 pti->pClientInfo->dwTIFlags = pti->TIF_flags;
3178 }
3180
3181 TRACE("WFII: ppi %p\n", W32Process);
3182 TRACE("WFII: waiting for %p\n", Handles[1] );
3183
3184 /*
3185 * We must add a refcount to our current PROCESSINFO,
3186 * because anything could happen (including process death) we're leaving win32k
3187 */
3188 IntReferenceProcessInfo(W32Process);
3189
3190 do
3191 {
3192 UserLeave();
3194 Handles,
3195 WaitAny,
3197 UserMode,
3198 FALSE,
3199 dwMilliseconds == INFINITE ? NULL : &Timeout,
3200 NULL);
3202
3203 if (!NT_SUCCESS(Status))
3204 {
3207 goto WaitExit;
3208 }
3209
3210 switch (Status)
3211 {
3212 case STATUS_WAIT_0:
3213 goto WaitExit;
3214
3215 case STATUS_WAIT_2:
3216 {
3217 MSG Msg;
3218 co_IntGetPeekMessage( &Msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE, FALSE);
3219 ERR("WFII: WAIT 2\n");
3220 }
3221 break;
3222
3223 case STATUS_TIMEOUT:
3224 ERR("WFII: timeout\n");
3225 case WAIT_FAILED:
3226 goto WaitExit;
3227
3228 default:
3229 ERR("WFII: finished\n");
3231 goto WaitExit;
3232 }
3233 }
3234 while (TRUE);
3235
3236WaitExit:
3238 for (pti = W32Process->ptiList; pti; pti = pti->ptiSibling)
3239 {
3240 pti->TIF_flags &= ~TIF_WAITFORINPUTIDLE;
3241 pti->pClientInfo->dwTIFlags = pti->TIF_flags;
3242 }
3243 W32Process->W32PF_flags &= ~W32PF_WAITFORINPUTIDLE;
3245
3246 IntDereferenceProcessInfo(W32Process);
3248 UserLeave();
3249 return Status;
3250}
_Must_inspect_result_ _In_ PLARGE_INTEGER _In_ PLARGE_INTEGER _In_ ULONG _In_ PFILE_OBJECT _In_ PVOID Process
Definition: fsrtlfuncs.h:223
#define PROCESS_QUERY_INFORMATION
Definition: pstypes.h:167
#define TIF_WAITFORINPUTIDLE
Definition: ntuser.h:277
if(dx< 0)
Definition: linetemp.h:194
_In_ BOOL _In_ HANDLE hProcess
Definition: mapping.h:71
#define UserMode
Definition: asm.h:35
@ WaitAny
_Out_ PKAPC_STATE ApcState
Definition: mm.h:1765
NTSTATUS NTAPI KeWaitForMultipleObjects(IN ULONG Count, IN PVOID Object[], IN WAIT_TYPE WaitType, IN KWAIT_REASON WaitReason, IN KPROCESSOR_MODE WaitMode, IN BOOLEAN Alertable, IN PLARGE_INTEGER Timeout OPTIONAL, OUT PKWAIT_BLOCK WaitBlockArray OPTIONAL)
Definition: wait.c:586
BOOLEAN NTAPI PsGetProcessExitProcessCalled(PEPROCESS Process)
Definition: process.c:1043
POBJECT_TYPE PsProcessType
Definition: process.c:20
#define STATUS_WAIT_0
Definition: ntstatus.h:237
#define STATUS_WAIT_2
Definition: ntstatus.h:72
struct _PROCESSINFO * PPROCESSINFO
Definition: ntwin32.h:5
NTSTATUS NTAPI ObReferenceObjectByHandle(IN HANDLE Handle, IN ACCESS_MASK DesiredAccess, IN POBJECT_TYPE ObjectType, IN KPROCESSOR_MODE AccessMode, OUT PVOID *Object, OUT POBJECT_HANDLE_INFORMATION HandleInformation OPTIONAL)
Definition: obref.c:494
static ULONG Timeout
Definition: ping.c:61
VOID NTAPI KeStackAttachProcess(IN PKPROCESS Process, OUT PRKAPC_STATE ApcState)
Definition: procobj.c:704
VOID NTAPI KeUnstackDetachProcess(IN PRKAPC_STATE ApcState)
Definition: procobj.c:756
PTHREADINFO ptiList
Definition: win32.h:257
PPROCESSINFO ppi
Definition: win32.h:88
PTHREADINFO ptiSibling
Definition: win32.h:116
PKEVENT pEventQueueServer
Definition: win32.h:125
int64_t LONGLONG
Definition: typedefs.h:68
#define IntReferenceProcessInfo(ppi)
Definition: win32.h:182
#define W32PF_WAITFORINPUTIDLE
Definition: win32.h:22
#define IntDereferenceProcessInfo(ppi)
Definition: win32.h:187
#define INFINITE
Definition: message.c:3111
#define WAIT_FAILED
Definition: message.c:3112
@ UserRequest
Definition: ketypes.h:421
KAPC_STATE
Definition: ketypes.h:1409

Referenced by WaitForInputIdle().

◆ NtUserWaitMessage()

BOOL APIENTRY NtUserWaitMessage ( VOID  )

Definition at line 2333 of file message.c.

2334{
2335 BOOL ret;
2336
2338 TRACE("NtUserWaitMessage Enter\n");
2339 ret = co_IntWaitMessage(NULL, 0, 0);
2340 TRACE("NtUserWaitMessage Leave\n");
2341 UserLeave();
2342
2343 return ret;
2344}

Referenced by WaitMessage().

◆ PackParam()

static NTSTATUS PackParam ( LPARAM lParamPacked,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam,
BOOL  NonPagedPoolNeeded 
)
static

Definition at line 284 of file message.c.

285{
286 NCCALCSIZE_PARAMS *UnpackedNcCalcsize;
287 NCCALCSIZE_PARAMS *PackedNcCalcsize;
288 CREATESTRUCTW *UnpackedCs;
289 CREATESTRUCTW *PackedCs;
290 PLARGE_STRING WindowName;
291 PUNICODE_STRING ClassName;
293 UINT Size;
294 PCHAR CsData;
295
296 *lParamPacked = lParam;
297
298 if (NonPagedPoolNeeded)
300 else
302
303 if (WM_NCCALCSIZE == Msg && wParam)
304 {
305
306 UnpackedNcCalcsize = (NCCALCSIZE_PARAMS *) lParam;
307 PackedNcCalcsize = ExAllocatePoolWithTag(PoolType,
308 sizeof(NCCALCSIZE_PARAMS) + sizeof(WINDOWPOS),
309 TAG_MSG);
310
311 if (NULL == PackedNcCalcsize)
312 {
313 ERR("Not enough memory to pack lParam\n");
314 return STATUS_NO_MEMORY;
315 }
316 RtlCopyMemory(PackedNcCalcsize, UnpackedNcCalcsize, sizeof(NCCALCSIZE_PARAMS));
317 PackedNcCalcsize->lppos = (PWINDOWPOS) (PackedNcCalcsize + 1);
318 RtlCopyMemory(PackedNcCalcsize->lppos, UnpackedNcCalcsize->lppos, sizeof(WINDOWPOS));
319 *lParamPacked = (LPARAM) PackedNcCalcsize;
320 }
321 else if (WM_CREATE == Msg || WM_NCCREATE == Msg)
322 {
323 UnpackedCs = (CREATESTRUCTW *) lParam;
324 WindowName = (PLARGE_STRING) UnpackedCs->lpszName;
325 ClassName = (PUNICODE_STRING) UnpackedCs->lpszClass;
326 Size = sizeof(CREATESTRUCTW) + WindowName->Length + sizeof(WCHAR);
327 if (IS_ATOM(ClassName->Buffer))
328 {
329 Size += sizeof(WCHAR) + sizeof(ATOM);
330 }
331 else
332 {
333 Size += sizeof(WCHAR) + ClassName->Length + sizeof(WCHAR);
334 }
336 if (NULL == PackedCs)
337 {
338 ERR("Not enough memory to pack lParam\n");
339 return STATUS_NO_MEMORY;
340 }
341 RtlCopyMemory(PackedCs, UnpackedCs, sizeof(CREATESTRUCTW));
342 CsData = (PCHAR) (PackedCs + 1);
343 PackedCs->lpszName = (LPCWSTR) (CsData - (PCHAR) PackedCs);
344 RtlCopyMemory(CsData, WindowName->Buffer, WindowName->Length);
345 CsData += WindowName->Length;
346 *((WCHAR *) CsData) = L'\0';
347 CsData += sizeof(WCHAR);
348 PackedCs->lpszClass = (LPCWSTR) (CsData - (PCHAR) PackedCs);
349 if (IS_ATOM(ClassName->Buffer))
350 {
351 *((WCHAR *) CsData) = L'A';
352 CsData += sizeof(WCHAR);
353 *((ATOM *) CsData) = (ATOM)(DWORD_PTR) ClassName->Buffer;
354 CsData += sizeof(ATOM);
355 }
356 else
357 {
358 NT_ASSERT(ClassName->Buffer != NULL);
359 *((WCHAR *) CsData) = L'S';
360 CsData += sizeof(WCHAR);
361 RtlCopyMemory(CsData, ClassName->Buffer, ClassName->Length);
362 CsData += ClassName->Length;
363 *((WCHAR *) CsData) = L'\0';
364 CsData += sizeof(WCHAR);
365 }
366 ASSERT(CsData == (PCHAR) PackedCs + Size);
367 *lParamPacked = (LPARAM) PackedCs;
368 }
369 else if (PoolType == NonPagedPool)
370 {
371 PMSGMEMORY MsgMemoryEntry;
372 PVOID PackedData;
373 SIZE_T size;
374
375 MsgMemoryEntry = FindMsgMemory(Msg);
376
377 if (!MsgMemoryEntry)
378 {
379 /* Keep previous behavior */
380 return STATUS_SUCCESS;
381 }
382 size = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
383 if (!size)
384 {
385 ERR("No size for lParamPacked\n");
386 return STATUS_SUCCESS;
387 }
389 if (PackedData == NULL)
390 {
391 ERR("Not enough memory to pack lParam\n");
392 return STATUS_NO_MEMORY;
393 }
394 RtlCopyMemory(PackedData, (PVOID)lParam, MsgMemorySize(MsgMemoryEntry, wParam, lParam));
395 *lParamPacked = (LPARAM)PackedData;
396 }
397
398 return STATUS_SUCCESS;
399}
#define NonPagedPool
Definition: env_spec_w32.h:307
GLsizeiptr size
Definition: glext.h:5919
PWINDOWPOS lppos
Definition: winuser.h:3602
INT POOL_TYPE
Definition: typedefs.h:78
ULONG_PTR SIZE_T
Definition: typedefs.h:80
char * PCHAR
Definition: typedefs.h:51
_Must_inspect_result_ _In_ WDFDEVICE _In_ DEVICE_REGISTRY_PROPERTY _In_ _Strict_type_match_ POOL_TYPE PoolType
Definition: wdfdevice.h:3815
#define NT_ASSERT
Definition: rtlfuncs.h:3327
const WCHAR * LPCWSTR
Definition: xmlstorage.h:185

Referenced by co_IntSendMessageTimeoutSingle(), and co_IntSendMessageWithCallBack().

◆ PosInArray()

static INT PosInArray ( _In_ PCWSTR  String)
static

Definition at line 28 of file message.c.

29{
30 INT i;
31
32 for (i = 0; i < ARRAYSIZE(StrUserKernel); ++i)
33 {
35 return i;
36 }
37 return -1;
38}
_Check_return_ _CRTIMP int __cdecl wcsncmp(_In_reads_or_z_(_MaxCount) const wchar_t *_Str1, _In_reads_or_z_(_MaxCount) const wchar_t *_Str2, _In_ size_t _MaxCount)
_Must_inspect_result_ _In_ WDFDEVICE _In_ WDFSTRING String
Definition: wdfdevice.h:2433

Referenced by CopyMsgToKernelMem().

◆ ScrollBarWndProc()

LRESULT APIENTRY ScrollBarWndProc ( HWND  Wnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam 
)

Definition at line 1123 of file scrollbar.c.

1124{
1125 LRESULT lResult = 0;
1126 PWND pWnd;
1127 pWnd = UserGetWindowObject(hWnd);
1128 if (!pWnd) return 0;
1129
1130 switch(Msg)
1131 {
1132 case WM_ENABLE:
1133 if (pWnd->pSBInfo)
1135 break;
1136 }
1137 return lResult;
1138}
PSBINFO pSBInfo
Definition: ntuser.h:726
INT WSBflags
Definition: ntuser.h:513
#define WM_ENABLE
Definition: winuser.h:1618
#define ESB_DISABLE_BOTH
Definition: winuser.h:556
#define ESB_ENABLE_BOTH
Definition: winuser.h:563

Referenced by NtUserMessageCall().

◆ UnpackParam()

static NTSTATUS UnpackParam ( LPARAM  lParamPacked,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam,
BOOL  NonPagedPoolUsed 
)
static

Definition at line 402 of file message.c.

403{
404 NCCALCSIZE_PARAMS *UnpackedParams;
405 NCCALCSIZE_PARAMS *PackedParams;
406 PWINDOWPOS UnpackedWindowPos;
407
408 if (lParamPacked == lParam)
409 {
410 return STATUS_SUCCESS;
411 }
412
413 if (WM_NCCALCSIZE == Msg && wParam)
414 {
415 PackedParams = (NCCALCSIZE_PARAMS *) lParamPacked;
416 UnpackedParams = (NCCALCSIZE_PARAMS *) lParam;
417 UnpackedWindowPos = UnpackedParams->lppos;
418 RtlCopyMemory(UnpackedParams, PackedParams, sizeof(NCCALCSIZE_PARAMS));
419 UnpackedParams->lppos = UnpackedWindowPos;
420 RtlCopyMemory(UnpackedWindowPos, PackedParams + 1, sizeof(WINDOWPOS));
421 ExFreePool((PVOID) lParamPacked);
422
423 return STATUS_SUCCESS;
424 }
425 else if (WM_CREATE == Msg || WM_NCCREATE == Msg)
426 {
427 ExFreePool((PVOID) lParamPacked);
428
429 return STATUS_SUCCESS;
430 }
431 else if (NonPagedPoolUsed)
432 {
433 PMSGMEMORY MsgMemoryEntry;
434 MsgMemoryEntry = FindMsgMemory(Msg);
435 ASSERT(MsgMemoryEntry);
436
437 if (MsgMemoryEntry->Flags == MMS_FLAG_READWRITE)
438 {
439 //RtlCopyMemory((PVOID)lParam, (PVOID)lParamPacked, MsgMemoryEntry->Size);
440 }
441 ExFreePool((PVOID) lParamPacked);
442 return STATUS_SUCCESS;
443 }
444
445 ASSERT(FALSE);
446
448}
#define STATUS_INVALID_PARAMETER
Definition: udferr_usr.h:135
#define MMS_FLAG_READWRITE
Definition: message.c:134

Referenced by co_IntSendMessageTimeoutSingle(), and co_IntSendMessageWithCallBack().

◆ UserPostMessage()

BOOL FASTCALL UserPostMessage ( HWND  Wnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam 
)

Definition at line 1395 of file message.c.

1399{
1400 PTHREADINFO pti;
1401 MSG Message;
1402 LONG_PTR ExtraInfo = 0;
1403
1404 Message.hwnd = Wnd;
1405 Message.message = Msg;
1406 Message.wParam = wParam;
1407 Message.lParam = lParam;
1408 Message.pt = gpsi->ptCursor;
1409 Message.time = EngGetTickCount32();
1410
1411 if (is_pointer_message(Message.message, Message.wParam))
1412 {
1414 return FALSE;
1415 }
1416
1417 if (Wnd == HWND_BROADCAST || Wnd == HWND_TOPMOST)
1418 {
1419 HWND *List;
1421 ULONG i;
1422
1423 if (!is_message_broadcastable(Msg)) return TRUE;
1424
1427
1428 if (List != NULL)
1429 {
1431 for (i = 0; List[i]; i++)
1432 {
1433 PWND pwnd = UserGetWindowObject(List[i]);
1434 if (!pwnd) continue;
1435
1436 if ( pwnd->fnid == FNID_MENU || // Also need pwnd->pcls->atomClassName == gaOleMainThreadWndClass
1438 continue;
1439
1441 }
1443 }
1444 }
1445 else
1446 {
1447 PWND Window;
1448
1449 if (!Wnd)
1450 {
1452 Msg,
1453 wParam,
1454 lParam);
1455 }
1456
1458 if ( !Window )
1459 {
1460 ERR("UserPostMessage: Invalid handle 0x%p Msg 0x%x!\n", Wnd, Msg);
1461 return FALSE;
1462 }
1463
1464 pti = Window->head.pti;
1465
1466 if ( pti->TIF_flags & TIF_INCLEANUP )
1467 {
1468 ERR("Attempted to post message to window %p when the thread is in cleanup!\n", Wnd);
1469 return FALSE;
1470 }
1471
1472 if ( Window->state & WNDS_DESTROYED )
1473 {
1474 ERR("Attempted to post message to window %p that is being destroyed!\n", Wnd);
1476 return FALSE;
1477 }
1478
1479 if ( Msg >= WM_DDE_FIRST && Msg <= WM_DDE_LAST )
1480 {
1481 if (!IntDdePostMessageHook(Window, Msg, wParam, &lParam, &ExtraInfo))
1482 {
1483 TRACE("Posting Exit DDE 0x%x\n",Msg);
1484 return FALSE;
1485 }
1486 Message.lParam = lParam;
1487 }
1488
1489 MsqPostMessage(pti, &Message, FALSE, QS_POSTMESSAGE, 0, ExtraInfo);
1490 }
1491 return TRUE;
1492}
VOID FASTCALL MsqPostMessage(PTHREADINFO pti, MSG *Msg, BOOLEAN HardwareMessage, DWORD MessageBits, DWORD dwQEvent, LONG_PTR ExtraInfo)
Definition: msgqueue.c:1337
BOOL APIENTRY IntDdePostMessageHook(IN PWND pWnd, IN UINT Msg, IN WPARAM wParam, IN OUT LPARAM *lParam, IN OUT LONG_PTR *ExtraInfo)
Definition: dde.c:172
#define ERROR_INVALID_WINDOW_HANDLE
Definition: winerror.h:881

Referenced by co_IntProcessKeyboardMessage(), co_IntShellHookNotify(), co_UserProcessHotKeys(), DefWndHandleSetCursor(), DefWndHandleSysCommand(), DoTheScreenSaver(), ExitThreadCallback(), IntDefWindowProc(), IntImmProcessKey(), IntLanguageToggle(), IntRemoveTrackMouseEvent(), IntTrackMouseEvent(), IntTrackMouseMove(), MENU_EndMenu(), MENU_ExecFocusedItem(), MENU_TrackKbdMenuBar(), MENU_TrackMenu(), NotifyLogon(), NtUserCallOneParam(), NtUserEndMenu(), NtUserLockWorkStation(), NtUserMessageCall(), NtUserPostMessage(), SystemTimerProc(), and UserPostMessage().

◆ UserPostThreadMessage()

BOOL FASTCALL UserPostThreadMessage ( PTHREADINFO  pti,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam 
)

Definition at line 1358 of file message.c.

1362{
1363 MSG Message;
1364
1366 {
1368 return FALSE;
1369 }
1370 Message.hwnd = NULL;
1371 Message.message = Msg;
1372 Message.wParam = wParam;
1373 Message.lParam = lParam;
1374 Message.pt = gpsi->ptCursor;
1375 Message.time = EngGetTickCount32();
1377 return TRUE;
1378}

Referenced by co_UserProcessHotKeys(), NtUserPostThreadMessage(), and UserPostMessage().

◆ UserSendNotifyMessage()

BOOL FASTCALL UserSendNotifyMessage ( HWND  hWnd,
UINT  Msg,
WPARAM  wParam,
LPARAM  lParam 
)

Definition at line 2090 of file message.c.

2094{
2095 BOOL Ret = TRUE;
2096
2098 {
2100 return FALSE;
2101 }
2102
2103 // Basicly the same as IntPostOrSendMessage
2104 if (hWnd == HWND_BROADCAST) // Handle Broadcast
2105 {
2106 HWND *List;
2108 ULONG i;
2109
2112
2113 if (List != NULL)
2114 {
2116 for (i = 0; List[i]; i++)
2117 {
2118 PWND pwnd = UserGetWindowObject(List[i]);
2119 if (!pwnd) continue;
2120
2121 if ( pwnd->fnid == FNID_MENU ||
2123 continue;
2124
2126 }
2128 }
2129 }
2130 else
2131 {
2133 }
2134 return Ret;
2135}
LRESULT FASTCALL co_IntSendMessageNoWait(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
Definition: message.c:1763

Referenced by co_IntSendActivateMessages(), IntHandlePowerEventWorker(), NtUserMessageCall(), NtUserSetSysColors(), UserChangeDisplaySettings(), UserRealizePalette(), and UserSendNotifyMessage().

Variable Documentation

◆ g_MsgMemory

MSGMEMORY g_MsgMemory[]
static
Initial value:
=
{
{ WM_STYLECHANGED, sizeof(STYLESTRUCT), MMS_FLAG_READ },
{ WM_STYLECHANGING, sizeof(STYLESTRUCT), MMS_FLAG_READWRITE },
{ WM_HELP, sizeof(HELPINFO), MMS_FLAG_READWRITE },
}
#define WM_COPYGLOBALDATA
Definition: undocuser.h:36
#define RECT
Definition: precomp.h:26
struct tagMDINEXTMENU MDINEXTMENU
#define WM_NEXTMENU
Definition: winuser.h:1809
#define WM_WINDOWPOSCHANGING
Definition: winuser.h:1664
#define WM_GETTEXT
Definition: winuser.h:1621
struct tagMEASUREITEMSTRUCT MEASUREITEMSTRUCT
struct _WINDOWPOS WINDOWPOS
struct tagDRAWITEMSTRUCT DRAWITEMSTRUCT
#define WM_DRAWITEM
Definition: winuser.h:1648
struct tagMINMAXINFO MINMAXINFO
#define WM_SETTEXT
Definition: winuser.h:1620
#define WM_GETMINMAXINFO
Definition: winuser.h:1643
struct tagSTYLESTRUCT STYLESTRUCT
struct tagHELPINFO HELPINFO
#define WM_MEASUREITEM
Definition: winuser.h:1649
#define WM_SIZING
Definition: winuser.h:1810
#define WM_MOVING
Definition: winuser.h:1812
#define WM_WINDOWPOSCHANGED
Definition: winuser.h:1665

Definition at line 143 of file message.c.

Referenced by FindMsgMemory().

◆ message_pointer_flags

const unsigned int message_pointer_flags[]
static

Definition at line 58 of file message.c.

Referenced by is_pointer_message().

◆ StrUserKernel

WCHAR StrUserKernel[3][20] = {{L"intl"}, {L"Environment"}, {L"Policy"}}

Definition at line 18 of file message.c.

Referenced by CopyMsgToKernelMem(), and PosInArray().