message.c File Reference

#include <user32.h>

Include dependency graph for message.c:

Go to the source code of this file.

Classes
struct	tagDDEPAIR
struct	_USER_MESSAGE_PUMP_ADDRESSES

Macros
#define	CALL_EXTERN_WNDPROC(proc, h, m, w, l)   proc(h, m, w, l)
#define	SET(msg)   (1 << ((msg) & 31))
#define	GROWBY   4
#define	QS_TEMPALLINPUT   255

Typedefs
typedef struct tagDDEPAIR	DDEPAIR
typedef struct tagDDEPAIR *	PDDEPAIR
typedef DWORD(WINAPI *	RealGetQueueStatusProc) (UINT flags)
typedef DWORD(WINAPI *	RealMsgWaitForMultipleObjectsExProc) (DWORD nCount, CONST HANDLE *lpHandles, DWORD dwMilliseconds, DWORD dwWakeMask, DWORD dwFlags)
typedef BOOL(WINAPI *	RealInternalGetMessageProc) (LPMSG, HWND, UINT, UINT, UINT, BOOL)
typedef BOOL(WINAPI *	RealWaitMessageExProc) (DWORD, UINT)
typedef struct _USER_MESSAGE_PUMP_ADDRESSES	USER_MESSAGE_PUMP_ADDRESSES
typedef struct _USER_MESSAGE_PUMP_ADDRESSES *	PUSER_MESSAGE_PUMP_ADDRESSES
typedef BOOL(WINAPI *	MESSAGEPUMPHOOKPROC) (BOOL Unregistering, PUSER_MESSAGE_PUMP_ADDRESSES MessagePumpAddresses)

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (user32)
static int	is_pointer_message (UINT message)
static BOOL FASTCALL	combobox_has_strings (HWND hwnd)
static BOOL FASTCALL	listbox_has_strings (HWND hwnd)
BOOL FASTCALL	DdeAddPair (HGLOBAL ClientMem, HGLOBAL ServerMem)
HGLOBAL FASTCALL	DdeGetPair (HGLOBAL ServerMem)
DWORD FASTCALL	get_input_codepage (void)
static WPARAM FASTCALL	map_wparam_char_WtoA (WPARAM wParam, DWORD len)
static WPARAM FASTCALL	map_wparam_AtoW (UINT message, WPARAM wparam)
static BOOL FASTCALL	MsgiUMToKMMessage (PMSG UMMsg, PMSG KMMsg, BOOL Posted)
static VOID FASTCALL	MsgiUMToKMCleanup (PMSG UMMsg, PMSG KMMsg)
static BOOL FASTCALL	MsgiKMToUMMessage (PMSG KMMsg, PMSG UMMsg)
static VOID FASTCALL	MsgiKMToUMCleanup (PMSG KMMsg, PMSG UMMsg)
static BOOL FASTCALL	MsgiKMToUMReply (PMSG KMMsg, PMSG UMMsg, LRESULT *Result)
static BOOL FASTCALL	MsgiAnsiToUnicodeMessage (HWND hwnd, LPMSG UnicodeMsg, LPMSG AnsiMsg)
static BOOL FASTCALL	MsgiAnsiToUnicodeCleanup (LPMSG UnicodeMsg, LPMSG AnsiMsg)
static BOOL FASTCALL	MsgiAnsiToUnicodeReply (LPMSG UnicodeMsg, LPMSG AnsiMsg, LRESULT *Result)
static BOOL FASTCALL	MsgiUnicodeToAnsiMessage (HWND hwnd, LPMSG AnsiMsg, LPMSG UnicodeMsg)
static BOOL FASTCALL	MsgiUnicodeToAnsiCleanup (LPMSG AnsiMsg, LPMSG UnicodeMsg)
static BOOL FASTCALL	MsgiUnicodeToAnsiReply (LPMSG AnsiMsg, LPMSG UnicodeMsg, LRESULT *Result)
LRESULT WINAPI	DesktopWndProcA (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
LPARAM WINAPI	GetMessageExtraInfo (VOID)
DWORD WINAPI	GetMessagePos (VOID)
LONG WINAPI	GetMessageTime (VOID)
BOOL WINAPI	InSendMessage (VOID)
DWORD WINAPI	InSendMessageEx (LPVOID lpReserved)
BOOL WINAPI	ReplyMessage (LRESULT lResult)
LPARAM WINAPI	SetMessageExtraInfo (LPARAM lParam)
LRESULT FASTCALL	IntCallWindowProcW (BOOL IsAnsiProc, WNDPROC WndProc, PWND pWnd, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
static LRESULT FASTCALL	IntCallWindowProcA (BOOL IsAnsiProc, WNDPROC WndProc, PWND pWnd, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
static LRESULT WINAPI	IntCallMessageProc (IN PWND Wnd, IN HWND hWnd, IN UINT Msg, IN WPARAM wParam, IN LPARAM lParam, IN BOOL Ansi)
LRESULT WINAPI	CallWindowProcA (WNDPROC lpPrevWndFunc, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
LRESULT WINAPI	CallWindowProcW (WNDPROC lpPrevWndFunc, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
LRESULT WINAPI DECLSPEC_HOTPATCH	DispatchMessageA (CONST MSG *lpmsg)
LRESULT WINAPI DECLSPEC_HOTPATCH	DispatchMessageW (CONST MSG *lpmsg)
static VOID	IntConvertMsgToAnsi (LPMSG lpMsg)
BOOL WINAPI DECLSPEC_HOTPATCH	GetMessageA (LPMSG lpMsg, HWND hWnd, UINT wMsgFilterMin, UINT wMsgFilterMax)
BOOL WINAPI DECLSPEC_HOTPATCH	GetMessageW (LPMSG lpMsg, HWND hWnd, UINT wMsgFilterMin, UINT wMsgFilterMax)
BOOL WINAPI	PeekMessageWorker (PMSG pMsg, HWND hWnd, UINT wMsgFilterMin, UINT wMsgFilterMax, UINT wRemoveMsg)
BOOL WINAPI DECLSPEC_HOTPATCH	PeekMessageA (LPMSG lpMsg, HWND hWnd, UINT wMsgFilterMin, UINT wMsgFilterMax, UINT wRemoveMsg)
BOOL WINAPI DECLSPEC_HOTPATCH	PeekMessageW (LPMSG lpMsg, HWND hWnd, UINT wMsgFilterMin, UINT wMsgFilterMax, UINT wRemoveMsg)
BOOL WINAPI	PostMessageA (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
BOOL WINAPI	PostMessageW (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
VOID WINAPI	PostQuitMessage (int nExitCode)
BOOL WINAPI	PostThreadMessageA (DWORD idThread, UINT Msg, WPARAM wParam, LPARAM lParam)
BOOL WINAPI	PostThreadMessageW (DWORD idThread, UINT Msg, WPARAM wParam, LPARAM lParam)
LRESULT WINAPI	SendMessageW (HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam)
LRESULT WINAPI	SendMessageA (HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam)
BOOL WINAPI	SendMessageCallbackA (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, SENDASYNCPROC lpCallBack, ULONG_PTR dwData)
BOOL WINAPI	SendMessageCallbackW (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, SENDASYNCPROC lpCallBack, ULONG_PTR dwData)
LRESULT WINAPI	SendMessageTimeoutA (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, UINT fuFlags, UINT uTimeout, PDWORD_PTR lpdwResult)
LRESULT WINAPI	SendMessageTimeoutW (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, UINT fuFlags, UINT uTimeout, PDWORD_PTR lpdwResult)
BOOL WINAPI	SendNotifyMessageA (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
BOOL WINAPI	SendNotifyMessageW (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
BOOL WINAPI	TranslateMessageEx (CONST MSG *lpMsg, UINT Flags)
BOOL WINAPI	TranslateMessage (CONST MSG *lpMsg)
UINT WINAPI	RegisterWindowMessageA (LPCSTR lpString)
UINT WINAPI	RegisterWindowMessageW (LPCWSTR lpString)
HWND WINAPI	GetCapture (VOID)
BOOL WINAPI	ReleaseCapture (VOID)
DWORD WINAPI	RealGetQueueStatus (UINT flags)
BOOL WINAPI	GetInputState (VOID)
NTSTATUS WINAPI	User32CallWindowProcFromKernel (PVOID Arguments, ULONG ArgumentLength)
BOOL WINAPI	SetMessageQueue (int cMessagesMax)
DWORD WINAPI	RealMsgWaitForMultipleObjectsEx (DWORD nCount, CONST HANDLE *pHandles, DWORD dwMilliseconds, DWORD dwWakeMask, DWORD dwFlags)
BOOL WINAPI	IsInsideMessagePumpHook ()
void WINAPI	ResetMessagePumpHook (PUSER_MESSAGE_PUMP_ADDRESSES Addresses)
BOOL WINAPI	RegisterMessagePumpHook (MESSAGEPUMPHOOKPROC Hook)
BOOL WINAPI	UnregisterMessagePumpHook (VOID)
DWORD WINAPI	GetQueueStatus (UINT flags)
RealMsgWaitForMultipleObjectsEx
Wait either for either message arrival or for one of the passed events to be signalled. Parameters nCount Number of handles in the pHandles array. pHandles Handles of events to wait for. dwMilliseconds Timeout interval. dwWakeMask Mask specifying on which message events we should wakeup. dwFlags Wait type (see MWMO_* constants). @implemented
DWORD WINAPI	RealMsgWaitForMultipleObjectsEx (DWORD nCount, const HANDLE *pHandles, DWORD dwMilliseconds, DWORD dwWakeMask, DWORD dwFlags)
DWORD WINAPI	MsgWaitForMultipleObjectsEx (DWORD nCount, CONST HANDLE *lpHandles, DWORD dwMilliseconds, DWORD dwWakeMask, DWORD dwFlags)
DWORD WINAPI	MsgWaitForMultipleObjects (DWORD nCount, CONST HANDLE *lpHandles, BOOL fWaitAll, DWORD dwMilliseconds, DWORD dwWakeMask)
BOOL FASTCALL	MessageInit (VOID)
VOID FASTCALL	MessageCleanup (VOID)
BOOL WINAPI	IsDialogMessageA (HWND hwndDlg, LPMSG pmsg)
LONG WINAPI	IntBroadcastSystemMessage (DWORD dwflags, LPDWORD lpdwRecipients, UINT uiMessage, WPARAM wParam, LPARAM lParam, PBSMINFO pBSMInfo, BOOL Ansi)
LONG WINAPI	BroadcastSystemMessageA (DWORD dwFlags, LPDWORD lpdwRecipients, UINT uiMessage, WPARAM wParam, LPARAM lParam)
LONG WINAPI	BroadcastSystemMessageW (DWORD dwFlags, LPDWORD lpdwRecipients, UINT uiMessage, WPARAM wParam, LPARAM lParam)
LONG WINAPI	BroadcastSystemMessageExA (DWORD dwflags, LPDWORD lpdwRecipients, UINT uiMessage, WPARAM wParam, LPARAM lParam, PBSMINFO pBSMInfo)
LONG WINAPI	BroadcastSystemMessageExW (DWORD dwflags, LPDWORD lpdwRecipients, UINT uiMessage, WPARAM wParam, LPARAM lParam, PBSMINFO pBSMInfo)

Variables
static const unsigned int	message_pointer_flags []
static PDDEPAIR	DdePairs = NULL
static unsigned	DdeNumAlloc = 0
static unsigned	DdeNumUsed = 0
static CRITICAL_SECTION	DdeCrst
CRITICAL_SECTION	gcsMPH
MESSAGEPUMPHOOKPROC	gpfnInitMPH
DWORD	gcLoadMPH = 0
USER_MESSAGE_PUMP_ADDRESSES	gmph
DWORD	gfMessagePumpHook = 0

Macro Definition Documentation

CALL_EXTERN_WNDPROC

#define CALL_EXTERN_WNDPROC	(		proc,
			h,
			m,
			w,
			l
	)		proc(h, m, w, l)

Definition at line 27 of file message.c.

GROWBY

#define GROWBY   4

QS_TEMPALLINPUT

#define QS_TEMPALLINPUT   255

SET

#define SET

(

msg

)

(1 << ((msg) & 31))

Definition at line 34 of file message.c.

Typedef Documentation

DDEPAIR

typedef struct tagDDEPAIR DDEPAIR

MESSAGEPUMPHOOKPROC

typedef BOOL(WINAPI * MESSAGEPUMPHOOKPROC) (BOOL Unregistering, PUSER_MESSAGE_PUMP_ADDRESSES MessagePumpAddresses)

Definition at line 3063 of file message.c.

PDDEPAIR

typedef struct tagDDEPAIR * PDDEPAIR

PUSER_MESSAGE_PUMP_ADDRESSES

typedef struct _USER_MESSAGE_PUMP_ADDRESSES * PUSER_MESSAGE_PUMP_ADDRESSES

RealGetQueueStatusProc

typedef DWORD(WINAPI * RealGetQueueStatusProc) (UINT flags)

Definition at line 3041 of file message.c.

RealInternalGetMessageProc

typedef BOOL(WINAPI * RealInternalGetMessageProc) (LPMSG, HWND, UINT, UINT, UINT, BOOL)

Definition at line 3043 of file message.c.

RealMsgWaitForMultipleObjectsExProc

typedef DWORD(WINAPI * RealMsgWaitForMultipleObjectsExProc) (DWORD nCount, CONST HANDLE *lpHandles, DWORD dwMilliseconds, DWORD dwWakeMask, DWORD dwFlags)

Definition at line 3042 of file message.c.

RealWaitMessageExProc

typedef BOOL(WINAPI * RealWaitMessageExProc) (DWORD, UINT)

Definition at line 3044 of file message.c.

USER_MESSAGE_PUMP_ADDRESSES

typedef struct _USER_MESSAGE_PUMP_ADDRESSES USER_MESSAGE_PUMP_ADDRESSES

Function Documentation

BroadcastSystemMessageA()

LONG WINAPI BroadcastSystemMessageA	(	DWORD	dwFlags,
		LPDWORD	lpdwRecipients,
		UINT	uiMessage,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 3382 of file message.c.

{
  return IntBroadcastSystemMessage( dwFlags, lpdwRecipients, uiMessage, wParam, lParam, NULL, TRUE );
}

Referenced by START_TEST().

BroadcastSystemMessageExA()

LONG WINAPI BroadcastSystemMessageExA	(	DWORD	dwflags,
		LPDWORD	lpdwRecipients,
		UINT	uiMessage,
		WPARAM	wParam,
		LPARAM	lParam,
		PBSMINFO	pBSMInfo
	)

Definition at line 3412 of file message.c.

{
  return IntBroadcastSystemMessage( dwflags, lpdwRecipients, uiMessage, wParam, lParam , pBSMInfo, TRUE );
}

Referenced by START_TEST().

BroadcastSystemMessageExW()

LONG WINAPI BroadcastSystemMessageExW	(	DWORD	dwflags,
		LPDWORD	lpdwRecipients,
		UINT	uiMessage,
		WPARAM	wParam,
		LPARAM	lParam,
		PBSMINFO	pBSMInfo
	)

Definition at line 3428 of file message.c.

{
  return IntBroadcastSystemMessage( dwflags, lpdwRecipients, uiMessage, wParam, lParam , pBSMInfo, FALSE );
}

Referenced by START_TEST(), and test_noprivileges().

BroadcastSystemMessageW()

LONG WINAPI BroadcastSystemMessageW	(	DWORD	dwFlags,
		LPDWORD	lpdwRecipients,
		UINT	uiMessage,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 3397 of file message.c.

{
  return IntBroadcastSystemMessage( dwFlags, lpdwRecipients, uiMessage, wParam, lParam, NULL, FALSE );
}

Referenced by InputList_Process(), and START_TEST().

CallWindowProcA()

LRESULT WINAPI CallWindowProcA	(	WNDPROC	lpPrevWndFunc,
		HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 1807 of file message.c.

{
    PWND pWnd;
    PCALLPROCDATA CallProc;

    if (lpPrevWndFunc == NULL)
    {
        WARN("CallWindowProcA: lpPrevWndFunc == NULL!\n");
        return 0;
    }

    pWnd = ValidateHwnd(hWnd);

    if (!IsCallProcHandle(lpPrevWndFunc))
        return IntCallWindowProcA(TRUE, lpPrevWndFunc, pWnd, hWnd, Msg, wParam, lParam);
    else
    {
        CallProc = ValidateCallProc((HANDLE)lpPrevWndFunc);
        if (CallProc != NULL)
        {
            return IntCallWindowProcA(!(CallProc->wType & UserGetCPDA2U),
                                        CallProc->pfnClientPrevious,
                                        pWnd,
                                        hWnd,
                                        Msg,
                                        wParam,
                                        lParam);
        }
        else
        {
            WARN("CallWindowProcA: can not dereference WndProcHandle\n");
            return 0;
        }
    }
}

CallWindowProcW()

LRESULT WINAPI CallWindowProcW	(	WNDPROC	lpPrevWndFunc,
		HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 1852 of file message.c.

{
    PWND pWnd;
    PCALLPROCDATA CallProc;

    /* FIXME - can the first parameter be NULL? */
    if (lpPrevWndFunc == NULL)
    {
        WARN("CallWindowProcA: lpPrevWndFunc == NULL!\n");
        return 0;
    }

    pWnd = ValidateHwnd(hWnd);

    if (!IsCallProcHandle(lpPrevWndFunc))
        return IntCallWindowProcW(FALSE, lpPrevWndFunc, pWnd, hWnd, Msg, wParam, lParam);
    else
    {
        CallProc = ValidateCallProc((HANDLE)lpPrevWndFunc);
        if (CallProc != NULL)
        {
            return IntCallWindowProcW(!(CallProc->wType & UserGetCPDA2U),
                                        CallProc->pfnClientPrevious,
                                        pWnd,
                                        hWnd,
                                        Msg,
                                        wParam,
                                        lParam);
        }
        else
        {
            WARN("CallWindowProcW: can not dereference WndProcHandle\n");
            return 0;
        }
    }
}

combobox_has_strings()

static BOOL FASTCALL combobox_has_strings ( HWND  hwnd )

static

Definition at line 107 of file message.c.

{
    DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
    return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
}

Referenced by MsgiAnsiToUnicodeCleanup(), MsgiAnsiToUnicodeMessage(), MsgiAnsiToUnicodeReply(), MsgiUnicodeToAnsiCleanup(), MsgiUnicodeToAnsiMessage(), and MsgiUnicodeToAnsiReply().

DdeAddPair()

BOOL FASTCALL DdeAddPair	(	HGLOBAL	ClientMem,
		HGLOBAL	ServerMem
	)

Definition at line 180 of file message.c.

{
  unsigned i;

  EnterCriticalSection(&DdeCrst);

  /* now remember the pair of hMem on both sides */
  if (DdeNumUsed == DdeNumAlloc)
    {
#define GROWBY  4
      PDDEPAIR New;
      if (NULL != DdePairs)
        {
          New = HeapReAlloc(GetProcessHeap(), 0, DdePairs,
                            (DdeNumAlloc + GROWBY) * sizeof(DDEPAIR));
        }
      else
        {
          New = HeapAlloc(GetProcessHeap(), 0,
                          (DdeNumAlloc + GROWBY) * sizeof(DDEPAIR));
        }

      if (NULL == New)
        {
          LeaveCriticalSection(&DdeCrst);
          return FALSE;
        }
      DdePairs = New;
      /* zero out newly allocated part */
      memset(&DdePairs[DdeNumAlloc], 0, GROWBY * sizeof(DDEPAIR));
      DdeNumAlloc += GROWBY;
#undef GROWBY
    }

  for (i = 0; i < DdeNumAlloc; i++)
    {
      if (NULL == DdePairs[i].ServerMem)
        {
          DdePairs[i].ClientMem = ClientMem;
          DdePairs[i].ServerMem = ServerMem;
          DdeNumUsed++;
          break;
        }
    }
  LeaveCriticalSection(&DdeCrst);

  return TRUE;
}

Referenced by unpack_dde_message().

DdeGetPair()

HGLOBAL FASTCALL DdeGetPair

(

HGLOBAL

ServerMem

)

Definition at line 230 of file message.c.

{
  unsigned i;
  HGLOBAL Ret = NULL;

  EnterCriticalSection(&DdeCrst);
  for (i = 0; i < DdeNumAlloc; i++)
    {
      if (DdePairs[i].ServerMem == ServerMem)
        {
          /* free this pair */
          DdePairs[i].ServerMem = 0;
          DdeNumUsed--;
          Ret = DdePairs[i].ClientMem;
          break;
        }
    }
  LeaveCriticalSection(&DdeCrst);

  return Ret;
}

Referenced by post_dde_message().

DesktopWndProcA()

LRESULT WINAPI DesktopWndProcA	(	HWND	hwnd,
		UINT	message,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 1306 of file message.c.

{
  LRESULT Result;
  MSG AnsiMsg, UcMsg;

  TRACE("Desktop A Class Atom! hWnd 0x%x, Msg %d\n", hwnd, message);

  AnsiMsg.hwnd = hwnd;
  AnsiMsg.message = message;
  AnsiMsg.wParam = wParam;
  AnsiMsg.lParam = lParam;
  AnsiMsg.time = 0;
  AnsiMsg.pt.x = 0;
  AnsiMsg.pt.y = 0;

  // Desktop is always Unicode so convert Ansi here.
  if (!MsgiAnsiToUnicodeMessage(hwnd, &UcMsg, &AnsiMsg))
  {
     return FALSE;
  }

  Result = DesktopWndProcW(hwnd, message, UcMsg.wParam, UcMsg.lParam);

  MsgiAnsiToUnicodeCleanup(&UcMsg, &AnsiMsg);

  return Result;
 }

Referenced by RegisterClientPFN().

DispatchMessageA()

LRESULT WINAPI DECLSPEC_HOTPATCH DispatchMessageA

(

CONST MSG *

lpmsg

)

Definition at line 1900 of file message.c.

{
    LRESULT Ret = 0;
    MSG UnicodeMsg;
    PWND Wnd;

    if ( lpmsg->message & ~WM_MAXIMUM )
    {
        SetLastError( ERROR_INVALID_PARAMETER );
        return 0;
    }

    if (lpmsg->hwnd != NULL)
    {
        Wnd = ValidateHwnd(lpmsg->hwnd);
        if (!Wnd) return 0;
    }
    else
        Wnd = NULL;

    if (is_pointer_message(lpmsg->message))
    {
       SetLastError( ERROR_MESSAGE_SYNC_ONLY );
       return 0;
    }

    if ((lpmsg->message == WM_TIMER || lpmsg->message == WM_SYSTIMER) && lpmsg->lParam != 0)
    {
        WNDPROC WndProc = (WNDPROC)lpmsg->lParam;

        if ( lpmsg->message == WM_SYSTIMER )
           return NtUserDispatchMessage( (PMSG)lpmsg );

        if (!NtUserValidateTimerCallback(lpmsg->lParam))
        {
           WARN("Validating Timer Callback failed!\n");
           return 0;
        }

       _SEH2_TRY // wine does this. Hint: Prevents call to another thread....
       {
           Ret = WndProc(lpmsg->hwnd,
                         lpmsg->message,
                         lpmsg->wParam,
                         GetTickCount());
       }
       _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
       {
           ERR("Exception in Timer Callback!\n");
       }
       _SEH2_END;
    }
    else if (Wnd != NULL)
    {
       if ( (lpmsg->message != WM_PAINT) && !(Wnd->state & WNDS_SERVERSIDEWINDOWPROC) )
       {
           Ret = IntCallMessageProc(Wnd,
                                    lpmsg->hwnd,
                                    lpmsg->message,
                                    lpmsg->wParam,
                                    lpmsg->lParam,
                                    TRUE);
       }
       else
       {
          if (!MsgiAnsiToUnicodeMessage(lpmsg->hwnd, &UnicodeMsg, (LPMSG)lpmsg))
          {
             return FALSE;
          }

          Ret = NtUserDispatchMessage(&UnicodeMsg);

          if (!MsgiAnsiToUnicodeReply(&UnicodeMsg, (LPMSG)lpmsg, &Ret))
          {
             return FALSE;
          }
       }
    }

    return Ret;
}

DispatchMessageW()

LRESULT WINAPI DECLSPEC_HOTPATCH DispatchMessageW

(

CONST MSG *

lpmsg

)

Definition at line 1989 of file message.c.

{
    LRESULT Ret = 0;
    PWND Wnd;
    BOOL Hit = FALSE;

    if ( lpmsg->message & ~WM_MAXIMUM )
    {
        SetLastError( ERROR_INVALID_PARAMETER );
        return 0;
    }

    if (lpmsg->hwnd != NULL)
    {
        Wnd = ValidateHwnd(lpmsg->hwnd);
        if (!Wnd) return 0;
    }
    else
        Wnd = NULL;

    if (is_pointer_message(lpmsg->message))
    {
       SetLastError( ERROR_MESSAGE_SYNC_ONLY );
       return 0;
    }

    if ((lpmsg->message == WM_TIMER || lpmsg->message == WM_SYSTIMER) && lpmsg->lParam != 0)
    {
        WNDPROC WndProc = (WNDPROC)lpmsg->lParam;

        if ( lpmsg->message == WM_SYSTIMER )
           return NtUserDispatchMessage( (PMSG) lpmsg );

        if (!NtUserValidateTimerCallback(lpmsg->lParam))
        {
           WARN("Validating Timer Callback failed!\n");
           return 0;
        }

       _SEH2_TRY
       {
           Ret = WndProc(lpmsg->hwnd,
                         lpmsg->message,
                         lpmsg->wParam,
                         GetTickCount());
       }
       _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
       {
          Hit = TRUE;
       }
       _SEH2_END;
    }
    else if (Wnd != NULL)
    {
       if ( (lpmsg->message != WM_PAINT) && !(Wnd->state & WNDS_SERVERSIDEWINDOWPROC) )
       {
           Ret = IntCallMessageProc(Wnd,
                                    lpmsg->hwnd,
                                    lpmsg->message,
                                    lpmsg->wParam,
                                    lpmsg->lParam,
                                    FALSE);
       }
       else
         Ret = NtUserDispatchMessage( (PMSG) lpmsg );
    }

    if (Hit)
    {
       WARN("Exception in Timer Callback WndProcW!\n");
    }
    return Ret;
}

get_input_codepage()

DWORD FASTCALL get_input_codepage

(

void

)

Definition at line 252 of file message.c.

{
    DWORD cp;
    int ret;
    HKL hkl = GetKeyboardLayout( 0 );
    ret = GetLocaleInfoW( LOWORD(hkl), LOCALE_IDEFAULTANSICODEPAGE | LOCALE_RETURN_NUMBER, (WCHAR *)&cp, sizeof(cp) / sizeof(WCHAR) );
    if (!ret) cp = CP_ACP;
    return cp;
}

Referenced by map_wparam_char_WtoA(), and MsgiUnicodeToAnsiMessage().

GetCapture()

HWND WINAPI GetCapture

(

VOID

)

Definition at line 2879 of file message.c.

{
  return (HWND)NtUserGetThreadState(THREADSTATE_CAPTUREWINDOW);
}

Referenced by button_hook_proc(), button_subclass_proc(), BUTTON_WindowProc(), ButtonWndProc_common(), cancel_popup_proc(), CBDropDown(), CBRollUp(), check_wnd_state_(), CheckListWndProc(), ChildWndProc(), EDIT_WM_LButtonUp(), EDIT_WM_MouseMove(), HEXEDIT_WM_LBUTTONUP(), HEXEDIT_WM_MOUSEMOVE(), IntScrollHandleScrollEvent(), LISTBOX_HandleLButtonDownCombo(), LISTBOX_HandleLButtonUp(), LISTBOX_WindowProc(), ListBoxWndProc_common(), LISTVIEW_TrackMouse(), MsgCheckProc(), CSizeboxWindow::OnKeyDown(), CMainWindow::OnKeyDown(), CSelectionWindow::OnKeyDown(), CImgAreaWindow::OnKeyDown(), PAGER_MouseMove(), CMenuFocusManager::ProcessMouseDown(), CMenuFocusManager::ProcessMouseMove(), CMenuFocusManager::ProcessMouseUp(), CUiSplitPanel::ProcessWindowMessage(), REBAR_MouseMove(), RebarSubclassProc(), SCROLL_TrackScrollBar(), ScrollTrackScrollBar(), subpopuplocked_wnd_proc(), test_button_messages(), test_capture_1(), test_capture_4_proc(), test_DestroyWindow(), test_missing_lbuttonup(), test_showwindow(), ToolTipProc(), TREEVIEW_TrackMouse(), UPDOWN_CancelMode(), UpDownWindowProc(), WndProc(), StartButton::WndProc(), SDIMainFrame::WndProc(), and ChildWindow::WndProc().

GetInputState()

BOOL WINAPI GetInputState

(

VOID

)

Definition at line 2914 of file message.c.

{
   PCLIENTTHREADINFO pcti = GetWin32ClientInfo()->pClientThreadInfo;

   if ((!pcti) || (pcti->fsChangeBits & (QS_KEY|QS_MOUSEBUTTON)))
      return (BOOL)NtUserGetThreadState(THREADSTATE_GETINPUTSTATE);

   return FALSE;
}

GetMessageA()

BOOL WINAPI DECLSPEC_HOTPATCH GetMessageA	(	LPMSG	lpMsg,
		HWND	hWnd,
		UINT	wMsgFilterMin,
		UINT	wMsgFilterMax
	)

Definition at line 2091 of file message.c.

{
  BOOL Res;

  if ( (wMsgFilterMin|wMsgFilterMax) & ~WM_MAXIMUM )
  {
     SetLastError( ERROR_INVALID_PARAMETER );
     return FALSE;
  }

  Res = NtUserGetMessage(lpMsg, hWnd, wMsgFilterMin, wMsgFilterMax);
  if (-1 == (int) Res)
  {
      return Res;
  }

  IntConvertMsgToAnsi(lpMsg);

  return Res;
}

GetMessageExtraInfo()

LPARAM WINAPI GetMessageExtraInfo

(

VOID

)

Definition at line 1339 of file message.c.

{
  return NtUserxGetMessageExtraInfo();
}

Referenced by OSK_DlgCommand(), and OSK_ReleaseKey().

GetMessagePos()

DWORD WINAPI GetMessagePos

(

VOID

)

Definition at line 1350 of file message.c.

{
  return NtUserxGetMessagePos();
}

Referenced by CommonWndProc(), LISTVIEW_RButtonDown(), ME_SetCursor(), TaskBar::Notify(), NotifyArea::Notify(), CInternetToolbar::OnLDown(), CInternetToolbar::OnMouseMove(), CExplorerBand::OnWinEvent(), preview_proc(), CMenuToolbarBase::ProcessContextMenu(), ServicesPageWndProc(), STATUSBAR_Relay2Tip(), SysLinkWindowProc(), TAB_RelayEvent(), test_GetMessagePos(), TOOLBAR_RelayEvent(), TREEVIEW_RButtonDown(), ViewDlg_OnTreeViewClick(), and WINHELP_RicheditWndProc().

GetMessageTime()

LONG WINAPI GetMessageTime

(

VOID

)

Definition at line 1360 of file message.c.

{
  return NtUserGetThreadState(THREADSTATE_GETMESSAGETIME);
}

Referenced by ME_CalculateClickCount(), mstsc_WndProc(), STATUSBAR_Relay2Tip(), TAB_RelayEvent(), TOOLBAR_RelayEvent(), and WindowProc().

GetMessageW()

BOOL WINAPI DECLSPEC_HOTPATCH GetMessageW	(	LPMSG	lpMsg,
		HWND	hWnd,
		UINT	wMsgFilterMin,
		UINT	wMsgFilterMax
	)

Definition at line 2121 of file message.c.

{
  BOOL Res;

  if ( (wMsgFilterMin|wMsgFilterMax) & ~WM_MAXIMUM )
  {
     SetLastError( ERROR_INVALID_PARAMETER );
     return FALSE;
  }

  Res = NtUserGetMessage(lpMsg, hWnd, wMsgFilterMin, wMsgFilterMax);
  if (-1 == (int) Res)
  {
      return Res;
  }

  return Res;
}

GetQueueStatus()

DWORD WINAPI GetQueueStatus

(

UINT

flags

)

Definition at line 3146 of file message.c.

{
    return IsInsideMessagePumpHook() ? gmph.RealGetQueueStatus(flags) : RealGetQueueStatus(flags);
}

InSendMessage()

BOOL WINAPI InSendMessage

(

VOID

)

Definition at line 1371 of file message.c.

{
  PCLIENTTHREADINFO pcti = GetWin32ClientInfo()->pClientThreadInfo;
  if ( pcti )
  {
    if (pcti->CTI_flags & CTI_INSENDMESSAGE)
    {
       return TRUE;
    }
  }
  return(NtUserGetThreadState(THREADSTATE_INSENDMESSAGE) != ISMEX_NOSEND);
}

Referenced by ClientRpcChannelBuffer_SendReceive(), co_IntCallWindowProc(), DoMessage(), and insendmessage_wnd_proc().

InSendMessageEx()

DWORD WINAPI InSendMessageEx

(

LPVOID

lpReserved

)

Definition at line 1390 of file message.c.

{
  PCLIENTTHREADINFO pcti = GetWin32ClientInfo()->pClientThreadInfo;
  if (pcti && !(pcti->CTI_flags & CTI_INSENDMESSAGE))
     return ISMEX_NOSEND;
  else
     return NtUserGetThreadState(THREADSTATE_INSENDMESSAGE);
}

Referenced by clipboard_wnd_proc(), DoBuildPrefix(), DoMessage(), DumpInSMEX(), insendmessage_wnd_proc(), and winproc_wrapper().

IntBroadcastSystemMessage()

LONG WINAPI IntBroadcastSystemMessage	(	DWORD	dwflags,
		LPDWORD	lpdwRecipients,
		UINT	uiMessage,
		WPARAM	wParam,
		LPARAM	lParam,
		PBSMINFO	pBSMInfo,
		BOOL	Ansi
	)

Definition at line 3300 of file message.c.

{
    BROADCASTPARM parm;
    DWORD recips = BSM_ALLCOMPONENTS;
    BOOL ret = -1; // Set to return fail
    static const DWORD all_flags = ( BSF_QUERY | BSF_IGNORECURRENTTASK | BSF_FLUSHDISK | BSF_NOHANG
                                   | BSF_POSTMESSAGE | BSF_FORCEIFHUNG | BSF_NOTIMEOUTIFNOTHUNG
                                   | BSF_ALLOWSFW | BSF_SENDNOTIFYMESSAGE | BSF_RETURNHDESK | BSF_LUID );

    if ((dwflags & ~all_flags) ||
        (!pBSMInfo && (dwflags & (BSF_RETURNHDESK|BSF_LUID))) )
    {
        SetLastError(ERROR_INVALID_PARAMETER);
        return 0;
    }

    if(uiMessage >= WM_USER && uiMessage < 0xC000)
    {
        SetLastError(ERROR_INVALID_PARAMETER);
        return 0;
    }

    if (dwflags & BSF_FORCEIFHUNG) dwflags |= BSF_NOHANG;

    if (dwflags & BSF_QUERY) dwflags &= ~BSF_SENDNOTIFYMESSAGE|BSF_POSTMESSAGE;

    if (!lpdwRecipients)
        lpdwRecipients = &recips;

    if (*lpdwRecipients & ~(BSM_APPLICATIONS|BSM_ALLDESKTOPS|BSM_INSTALLABLEDRIVERS|BSM_NETDRIVER|BSM_VXDS))
    {
       SetLastError(ERROR_INVALID_PARAMETER);
       return 0;
    }

    if ( pBSMInfo && (dwflags & BSF_QUERY) )
    {
       if (pBSMInfo->cbSize != sizeof(BSMINFO))
       {
           SetLastError(ERROR_INVALID_PARAMETER);
           return 0;
       }
    }

    parm.hDesk = NULL;
    parm.hWnd = NULL;
    parm.flags = dwflags;
    parm.recipients = *lpdwRecipients;

    if (dwflags & BSF_LUID) parm.luid = pBSMInfo->luid;

    ret = NtUserMessageCall(GetDesktopWindow(),
                                     uiMessage,
                                        wParam,
                                        lParam,
                              (ULONG_PTR)&parm,
                   FNID_BROADCASTSYSTEMMESSAGE,
                                          Ansi);

    if (!ret)
    {
       if ( pBSMInfo && (dwflags & BSF_QUERY) )
       {
          pBSMInfo->hdesk = parm.hDesk;
          pBSMInfo->hwnd = parm.hWnd;
       }
    }
    return ret;
}

Referenced by BroadcastSystemMessageA(), BroadcastSystemMessageExA(), BroadcastSystemMessageExW(), and BroadcastSystemMessageW().

IntCallMessageProc()

static LRESULT WINAPI IntCallMessageProc ( IN PWND  Wnd, IN HWND  hWnd, IN UINT  Msg, IN WPARAM  wParam, IN LPARAM  lParam, IN BOOL  Ansi  )

static

Definition at line 1746 of file message.c.

{
    WNDPROC WndProc;
    BOOL IsAnsi;
    PCLS Class;

    Class = DesktopPtrToUser(Wnd->pcls);
    WndProc = NULL;

    if ( Wnd->head.pti != GetW32ThreadInfo())
    {  // Must be inside the same thread!
       SetLastError( ERROR_MESSAGE_SYNC_ONLY );
       return 0;
    }
  /*
      This is the message exchange for user32. If there's a need to monitor messages,
      do it here!
   */
    TRACE("HWND %p, MSG %u, WPARAM %p, LPARAM %p, Ansi %d\n", hWnd, Msg, wParam, lParam, Ansi);
//    if (Class->fnid <= FNID_GHOST && Class->fnid >= FNID_BUTTON )
    if (Class->fnid <= FNID_GHOST && Class->fnid >= FNID_FIRST )
    {
       if (Ansi)
       {
          if (GETPFNCLIENTW(Class->fnid) == Wnd->lpfnWndProc)
             WndProc = GETPFNCLIENTA(Class->fnid);
       }
       else
       {
          if (GETPFNCLIENTA(Class->fnid) == Wnd->lpfnWndProc)
             WndProc = GETPFNCLIENTW(Class->fnid);
       }

       IsAnsi = Ansi;

       if (!WndProc)
       {
          IsAnsi = !Wnd->Unicode;
          WndProc = Wnd->lpfnWndProc;
       }
    }
    else
    {
       IsAnsi = !Wnd->Unicode;
       WndProc = Wnd->lpfnWndProc;
    }
/*
   Message caller can be Ansi/Unicode and the receiver can be Unicode/Ansi or
   the same.
 */
    if (!Ansi)
        return IntCallWindowProcW(IsAnsi, WndProc, Wnd, hWnd, Msg, wParam, lParam);
    else
        return IntCallWindowProcA(IsAnsi, WndProc, Wnd, hWnd, Msg, wParam, lParam);
}

Referenced by DispatchMessageA(), DispatchMessageW(), SendMessageA(), and SendMessageW().

IntCallWindowProcA()

static LRESULT FASTCALL IntCallWindowProcA ( BOOL  IsAnsiProc, WNDPROC  WndProc, PWND  pWnd, HWND  hWnd, UINT  Msg, WPARAM  wParam, LPARAM  lParam  )

static

Definition at line 1583 of file message.c.

{
  MSG AnsiMsg;
  MSG UnicodeMsg;
  BOOL Hook = FALSE, MsgOverride = FALSE, Dialog, DlgOverride = FALSE;
  LRESULT Result = 0, PreResult = 0;
  DWORD Data = 0;

  TRACE("IntCallWindowProcA: IsAnsiProc : %s, WndProc %p, pWnd %p, hWnd %p, Msg %u, wParam %Iu, lParam %Iu.\n",
      IsAnsiProc ? "TRUE" : "FALSE", WndProc, pWnd, hWnd, Msg, wParam, lParam);

  if (WndProc == NULL)
  {
      WARN("IntCallWindowsProcA() called with WndProc = NULL!\n");
      return FALSE;
  }

  if (pWnd)
     Dialog = (pWnd->fnid == FNID_DIALOG);
  else
     Dialog = FALSE;

  Hook = BeginIfHookedUserApiHook();
  if (Hook)
  {
     if (Dialog)
        DlgOverride = IsMsgOverride( Msg, &guah.DlgProcArray);
     MsgOverride = IsMsgOverride( Msg, &guah.WndProcArray);
  }

  if (IsAnsiProc)
  {
      if (Hook && (MsgOverride || DlgOverride))
      {
         _SEH2_TRY
         {
            if (!DlgOverride)
               PreResult = guah.PreWndProc(hWnd, Msg, wParam, lParam, (ULONG_PTR)&Result, &Data );
            else
               PreResult = guah.PreDefDlgProc(hWnd, Msg, wParam, lParam, (ULONG_PTR)&Result, &Data );
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
            ERR("Got exception in hooked PreWndProc, dlg:%d!\n", DlgOverride);
         }
         _SEH2_END;
      }

      if (PreResult) goto Exit;

      if (!Dialog)
      Result = CALL_EXTERN_WNDPROC(WndProc, hWnd, Msg, wParam, lParam);
      else
      {
      _SEH2_TRY
      {
         Result = CALL_EXTERN_WNDPROC(WndProc, hWnd, Msg, wParam, lParam);
      }
      _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
      {
         ERR("Exception Dialog Ansi %p Msg %d pti %p Wndpti %p\n",WndProc,Msg,GetW32ThreadInfo(),pWnd->head.pti);
      }
      _SEH2_END;
      }

      if (Hook && (MsgOverride || DlgOverride))
      {
         _SEH2_TRY
         {
            if (!DlgOverride)
               guah.PostWndProc(hWnd, Msg, wParam, lParam, (ULONG_PTR)&Result, &Data );
            else
               guah.PostDefDlgProc(hWnd, Msg, wParam, lParam, (ULONG_PTR)&Result, &Data );
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
            ERR("Got exception in hooked PostWndProc, dlg:%d!\n", DlgOverride);
         }
         _SEH2_END;
      }
  }
  else
  {
      AnsiMsg.hwnd = hWnd;
      AnsiMsg.message = Msg;
      AnsiMsg.wParam = wParam;
      AnsiMsg.lParam = lParam;
      AnsiMsg.time = 0;
      AnsiMsg.pt.x = 0;
      AnsiMsg.pt.y = 0;
      if (! MsgiAnsiToUnicodeMessage(hWnd, &UnicodeMsg, &AnsiMsg))
      {
          goto Exit;
      }

      if (Hook && (MsgOverride || DlgOverride))
      {
         _SEH2_TRY
         {
            if (!DlgOverride)
               PreResult = guah.PreWndProc(UnicodeMsg.hwnd, UnicodeMsg.message, UnicodeMsg.wParam, UnicodeMsg.lParam, (ULONG_PTR)&Result, &Data );
            else
               PreResult = guah.PreDefDlgProc(UnicodeMsg.hwnd, UnicodeMsg.message, UnicodeMsg.wParam, UnicodeMsg.lParam, (ULONG_PTR)&Result, &Data );
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
            ERR("Got exception in hooked PreWndProc, dlg:%d!\n", DlgOverride);
         }
         _SEH2_END;
      }

      if (PreResult) goto Exit;

      if (!Dialog)
      Result = CALL_EXTERN_WNDPROC(WndProc, UnicodeMsg.hwnd, UnicodeMsg.message, UnicodeMsg.wParam, UnicodeMsg.lParam);
      else
      {
      _SEH2_TRY
      {
         Result = CALL_EXTERN_WNDPROC(WndProc, UnicodeMsg.hwnd, UnicodeMsg.message, UnicodeMsg.wParam, UnicodeMsg.lParam);
      }
      _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
      {
         ERR("Exception Dialog unicode %p Msg %d pti %p Wndpti %p\n",WndProc, Msg,GetW32ThreadInfo(),pWnd->head.pti);
      }
      _SEH2_END;
      }

      if (Hook && (MsgOverride || DlgOverride))
      {
         _SEH2_TRY
         {
            if (!DlgOverride)
               guah.PostWndProc(UnicodeMsg.hwnd, UnicodeMsg.message, UnicodeMsg.wParam, UnicodeMsg.lParam, (ULONG_PTR)&Result, &Data );
            else
               guah.PostDefDlgProc(UnicodeMsg.hwnd, UnicodeMsg.message, UnicodeMsg.wParam, UnicodeMsg.lParam, (ULONG_PTR)&Result, &Data );
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
            ERR("Got exception in hooked PostWndProc, dlg:%d!\n", DlgOverride);
         }
         _SEH2_END;
      }

      if (! MsgiAnsiToUnicodeReply(&UnicodeMsg, &AnsiMsg, &Result))
      {
         goto Exit;
      }
  }

Exit:
  if (Hook) EndUserApiHook();
  return Result;
}

Referenced by CallWindowProcA(), and IntCallMessageProc().

IntCallWindowProcW()

LRESULT FASTCALL IntCallWindowProcW	(	BOOL	IsAnsiProc,
		WNDPROC	WndProc,
		PWND	pWnd,
		HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 1424 of file message.c.

{
  MSG AnsiMsg;
  MSG UnicodeMsg;
  BOOL Hook = FALSE, MsgOverride = FALSE, Dialog, DlgOverride = FALSE;
  LRESULT Result = 0, PreResult = 0;
  DWORD Data = 0;

  if (WndProc == NULL)
  {
      WARN("IntCallWindowsProcW() called with WndProc = NULL!\n");
      return FALSE;
  }

  if (pWnd)
     Dialog = (pWnd->fnid == FNID_DIALOG);
  else
     Dialog = FALSE;

  Hook = BeginIfHookedUserApiHook();
  if (Hook)
  {
     if (Dialog)
        DlgOverride = IsMsgOverride( Msg, &guah.DlgProcArray);
     MsgOverride = IsMsgOverride( Msg, &guah.WndProcArray);
  }

  if (IsAnsiProc)
  {
      UnicodeMsg.hwnd = hWnd;
      UnicodeMsg.message = Msg;
      UnicodeMsg.wParam = wParam;
      UnicodeMsg.lParam = lParam;
      UnicodeMsg.time = 0;
      UnicodeMsg.pt.x = 0;
      UnicodeMsg.pt.y = 0;
       if (! MsgiUnicodeToAnsiMessage(hWnd, &AnsiMsg, &UnicodeMsg))
      {
          goto Exit;
      }

      if (Hook && (MsgOverride || DlgOverride))
      {
         _SEH2_TRY
         {
            if (!DlgOverride)
               PreResult = guah.PreWndProc(AnsiMsg.hwnd, AnsiMsg.message, AnsiMsg.wParam, AnsiMsg.lParam, (ULONG_PTR)&Result, &Data );
            else
               PreResult = guah.PreDefDlgProc(AnsiMsg.hwnd, AnsiMsg.message, AnsiMsg.wParam, AnsiMsg.lParam, (ULONG_PTR)&Result, &Data );
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
            ERR("Got exception in hooked PreWndProc, dlg:%d!\n", DlgOverride);
         }
         _SEH2_END;
      }

      if (PreResult) goto Exit;

      if (!Dialog)
      Result = CALL_EXTERN_WNDPROC(WndProc, AnsiMsg.hwnd, AnsiMsg.message, AnsiMsg.wParam, AnsiMsg.lParam);
      else
      {
      _SEH2_TRY
      {
         Result = CALL_EXTERN_WNDPROC(WndProc, AnsiMsg.hwnd, AnsiMsg.message, AnsiMsg.wParam, AnsiMsg.lParam);
      }
      _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
      {
         ERR("Exception Dialog Ansi %p Msg %d pti %p Wndpti %p\n",WndProc,Msg,GetW32ThreadInfo(),pWnd->head.pti);
      }
      _SEH2_END;
      }

      if (Hook && (MsgOverride || DlgOverride))
      {
         _SEH2_TRY
         {
            if (!DlgOverride)
               guah.PostWndProc(AnsiMsg.hwnd, AnsiMsg.message, AnsiMsg.wParam, AnsiMsg.lParam, (ULONG_PTR)&Result, &Data );
            else
               guah.PostDefDlgProc(AnsiMsg.hwnd, AnsiMsg.message, AnsiMsg.wParam, AnsiMsg.lParam, (ULONG_PTR)&Result, &Data );
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
            ERR("Got exception in hooked PostWndProc, dlg:%d!\n", DlgOverride);
         }
         _SEH2_END;
      }

      if (! MsgiUnicodeToAnsiReply(&AnsiMsg, &UnicodeMsg, &Result))
      {
          goto Exit;
      }
  }
  else
  {
      if (Hook && (MsgOverride || DlgOverride))
      {
         _SEH2_TRY
         {
            if (!DlgOverride)
               PreResult = guah.PreWndProc(hWnd, Msg, wParam, lParam, (ULONG_PTR)&Result, &Data );
            else
               PreResult = guah.PreDefDlgProc(hWnd, Msg, wParam, lParam, (ULONG_PTR)&Result, &Data );
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
            ERR("Got exception in hooked PreWndProc, dlg:%d!\n", DlgOverride);
         }
         _SEH2_END;
      }

      if (PreResult) goto Exit;

      if (!Dialog)
      Result = CALL_EXTERN_WNDPROC(WndProc, hWnd, Msg, wParam, lParam);
      else
      {
      _SEH2_TRY
      {
         Result = CALL_EXTERN_WNDPROC(WndProc, hWnd, Msg, wParam, lParam);
      }
      _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
      {
         ERR("Exception Dialog unicode %p Msg %d pti %p Wndpti %p\n",WndProc, Msg,GetW32ThreadInfo(),pWnd->head.pti);
      }
      _SEH2_END;
      }

      if (Hook && (MsgOverride || DlgOverride))
      {
         _SEH2_TRY
         {
            if (!DlgOverride)
               guah.PostWndProc(hWnd, Msg, wParam, lParam, (ULONG_PTR)&Result, &Data );
            else
               guah.PostDefDlgProc(hWnd, Msg, wParam, lParam, (ULONG_PTR)&Result, &Data );
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
            ERR("Got exception in hooked PostWndProc, dlg:%d!\n", DlgOverride);
         }
         _SEH2_END;
      }
  }

Exit:
  if (Hook) EndUserApiHook();
  return Result;
}

Referenced by CallWindowProcW(), IntCallMessageProc(), and User32CallWindowProcFromKernel().

IntConvertMsgToAnsi()

static VOID IntConvertMsgToAnsi ( LPMSG  lpMsg )

static

Definition at line 2064 of file message.c.

{
    CHAR ch[2];
    WCHAR wch[2];

    switch (lpMsg->message)
    {
        case WM_CHAR:
        case WM_DEADCHAR:
        case WM_SYSCHAR:
        case WM_SYSDEADCHAR:
        case WM_MENUCHAR:
            wch[0] = LOWORD(lpMsg->wParam);
            wch[1] = HIWORD(lpMsg->wParam);
            ch[0] = ch[1] = 0;
            WideCharToMultiByte(CP_THREAD_ACP, 0, wch, 2, ch, 2, NULL, NULL);
            lpMsg->wParam = MAKEWPARAM(ch[0] | (ch[1] << 8), 0);
            break;
    }
}

Referenced by GetMessageA(), and PeekMessageA().

is_pointer_message()

static int is_pointer_message ( UINT  message )

inlinestatic

Definition at line 98 of file message.c.

{
    if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
        return (message_pointer_flags[message / 32] & SET(message)) != 0;
}

Referenced by DispatchMessageA(), DispatchMessageW(), SendMessageCallbackA(), SendMessageCallbackW(), SendNotifyMessageA(), and SendNotifyMessageW().

IsDialogMessageA()

BOOL WINAPI IsDialogMessageA	(	HWND	hwndDlg,
		LPMSG	pmsg
	)

Definition at line 3291 of file message.c.

{
    MSG msg = *pmsg;
    msg.wParam = map_wparam_AtoW( msg.message, msg.wParam );
    return IsDialogMessageW( hwndDlg, &msg );
}

IsInsideMessagePumpHook()

BOOL WINAPI IsInsideMessagePumpHook

(

)

Definition at line 3077 of file message.c.

{  // FF uses this and polls it when Min/Max
   PCLIENTTHREADINFO pcti = GetWin32ClientInfo()->pClientThreadInfo;
   return (gfMessagePumpHook && pcti && (pcti->dwcPumpHook > 0));
}

Referenced by GetQueueStatus(), and MsgWaitForMultipleObjectsEx().

listbox_has_strings()

static BOOL FASTCALL listbox_has_strings ( HWND  hwnd )

static

Definition at line 114 of file message.c.

{
    DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
    return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
}

Referenced by MsgiAnsiToUnicodeCleanup(), MsgiAnsiToUnicodeMessage(), MsgiAnsiToUnicodeReply(), MsgiUnicodeToAnsiCleanup(), MsgiUnicodeToAnsiMessage(), and MsgiUnicodeToAnsiReply().

map_wparam_AtoW()

static WPARAM FASTCALL map_wparam_AtoW ( UINT  message, WPARAM  wparam  )

static

Definition at line 281 of file message.c.

{
    char ch[2];
    WCHAR wch[2];

    wch[0] = wch[1] = 0;
    switch(message)
    {
    case WM_CHAR:
        /* WM_CHAR is magic: a DBCS char can be sent/posted as two consecutive WM_CHAR
         * messages, in which case the first char is stored, and the conversion
         * to Unicode only takes place once the second char is sent/posted.
         */
#if 0
        if (mapping != WMCHAR_MAP_NOMAPPING) // NlsMbCodePageTag
        {
            PCLIENTINFO pci = GetWin32ClientInfo();

            struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;

            BYTE low = LOBYTE(wparam);

            if (HIBYTE(wparam))
            {
                ch[0] = low;
                ch[1] = HIBYTE(wparam);
                RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
                TRACE( "map %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
                if (data) data->lead_byte[mapping] = 0;
            }
            else if (data && data->lead_byte[mapping])
            {
                ch[0] = data->lead_byte[mapping];
                ch[1] = low;
                RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
                TRACE( "map stored %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
                data->lead_byte[mapping] = 0;
            }
            else if (!IsDBCSLeadByte( low ))
            {
                ch[0] = low;
                RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 1 );
                TRACE( "map %02x -> %04x\n", (BYTE)ch[0], wch[0] );
                if (data) data->lead_byte[mapping] = 0;
            }
            else  /* store it and wait for trail byte */
            {
                if (!data)
                {
                    if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
                        return FALSE;
                    get_user_thread_info()->wmchar_data = data;
                }
                TRACE( "storing lead byte %02x mapping %u\n", low, mapping );
                data->lead_byte[mapping] = low;
                return FALSE;
            }
            wparam = MAKEWPARAM(wch[0], wch[1]);
            break;
        }
#endif
        /* else fall through */
    case WM_CHARTOITEM:
    case EM_SETPASSWORDCHAR:
    case WM_DEADCHAR:
    case WM_SYSCHAR:
    case WM_SYSDEADCHAR:
    case WM_MENUCHAR:
        ch[0] = LOBYTE(wparam);
        ch[1] = HIBYTE(wparam);
        RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
        wparam = MAKEWPARAM(wch[0], wch[1]);
        break;
    case WM_IME_CHAR:
        ch[0] = HIBYTE(wparam);
        ch[1] = LOBYTE(wparam);
        if (ch[0]) RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch, 2 );
        else RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch + 1, 1 );
        wparam = MAKEWPARAM(wch[0], HIWORD(wparam));
        break;
    }
    return wparam;
}

Referenced by IsDialogMessageA(), and MsgiAnsiToUnicodeMessage().

map_wparam_char_WtoA()

static WPARAM FASTCALL map_wparam_char_WtoA ( WPARAM  wParam, DWORD  len  )

static

Definition at line 262 of file message.c.

{
    WCHAR wch = wParam;
    BYTE ch[2];
    DWORD cp = get_input_codepage();

    len = WideCharToMultiByte( cp, 0, &wch, 1, (LPSTR)ch, len, NULL, NULL );
    if (len == 2)
       return MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(wParam) );
    else
    return MAKEWPARAM( ch[0], HIWORD(wParam) );
}

Referenced by MsgiUnicodeToAnsiMessage().

MessageCleanup()

VOID FASTCALL MessageCleanup

(

VOID

)

Definition at line 3281 of file message.c.

{
  DeleteCriticalSection(&DdeCrst);
  DeleteCriticalSection(&gcsMPH);
}

Referenced by Cleanup(), and ClientThreadSetupHelper().

MessageInit()

BOOL FASTCALL MessageInit

(

VOID

)

Definition at line 3273 of file message.c.

{
  InitializeCriticalSection(&DdeCrst);
  InitializeCriticalSection(&gcsMPH);

  return TRUE;
}

Referenced by ClientThreadSetupHelper().

MsgiAnsiToUnicodeCleanup()

static BOOL FASTCALL MsgiAnsiToUnicodeCleanup ( LPMSG  UnicodeMsg, LPMSG  AnsiMsg  )

static

Definition at line 708 of file message.c.

{
  UNICODE_STRING UnicodeString;

  switch (AnsiMsg->message)
    {
    case LB_GETTEXT:
        if (!listbox_has_strings( UnicodeMsg->hwnd )) break;
    case CB_GETLBTEXT:
        if (UnicodeMsg->message == CB_GETLBTEXT && !combobox_has_strings( UnicodeMsg->hwnd )) break;
    case WM_GETTEXT:
    case WM_ASKCBFORMATNAME:
      {
        if (!UnicodeMsg->lParam) break;
        RtlFreeHeap(GetProcessHeap(), 0, (PVOID) UnicodeMsg->lParam);
        break;
      }

    case WM_SETTEXT:
    case WM_WININICHANGE:
    case WM_DEVMODECHANGE:
    case CB_DIR:
    case LB_DIR:
    case LB_ADDFILE:
    case EM_REPLACESEL:
      {
        if (!UnicodeMsg->lParam) break;
        RtlInitUnicodeString(&UnicodeString, (PCWSTR)UnicodeMsg->lParam);
        RtlFreeUnicodeString(&UnicodeString);
        break;
      }

    case LB_ADDSTRING:
    case LB_ADDSTRING_LOWER:
    case LB_ADDSTRING_UPPER:
    case LB_INSERTSTRING:
    case LB_INSERTSTRING_UPPER:
    case LB_INSERTSTRING_LOWER:
    case LB_FINDSTRING:
    case LB_FINDSTRINGEXACT:
    case LB_SELECTSTRING:
      {
        if (UnicodeMsg->lParam && listbox_has_strings(AnsiMsg->hwnd))
          {
            RtlInitUnicodeString(&UnicodeString, (PCWSTR)UnicodeMsg->lParam);
            RtlFreeUnicodeString(&UnicodeString);
          }
        break;
      }

    case CB_ADDSTRING:
    case CB_INSERTSTRING:
    case CB_FINDSTRING:
    case CB_FINDSTRINGEXACT:
    case CB_SELECTSTRING:
      {
        if (UnicodeMsg->lParam && combobox_has_strings(AnsiMsg->hwnd))
          {
            RtlInitUnicodeString(&UnicodeString, (PCWSTR)UnicodeMsg->lParam);
            RtlFreeUnicodeString(&UnicodeString);
          }
        break;
      }

    case WM_NCCREATE:
    case WM_CREATE:
      {
        struct s
        {
           CREATESTRUCTW cs;          /* new structure */
           MDICREATESTRUCTW mdi_cs;   /* MDI info */
           LPWSTR lpszName;           /* allocated Name */
           LPWSTR lpszClass;          /* allocated Class */
        };

        struct s *xs = (struct s *)UnicodeMsg->lParam;
        if (xs->lpszName)
          {
            RtlInitUnicodeString(&UnicodeString, (PCWSTR)xs->lpszName);
            RtlFreeUnicodeString(&UnicodeString);
          }
        if (xs->lpszClass)
          {
            RtlInitUnicodeString(&UnicodeString, (PCWSTR)xs->lpszClass);
            RtlFreeUnicodeString(&UnicodeString);
          }
        HeapFree(GetProcessHeap(), 0, xs);
        break;
      }

    case WM_MDICREATE:
      {
        MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)UnicodeMsg->lParam;
        RtlInitUnicodeString(&UnicodeString, (PCWSTR)cs->szTitle);
        RtlFreeUnicodeString(&UnicodeString);
        if (!IS_ATOM(cs->szClass))
          {
            RtlInitUnicodeString(&UnicodeString, (PCWSTR)cs->szClass);
            RtlFreeUnicodeString(&UnicodeString);
          }
        HeapFree(GetProcessHeap(), 0, cs);
        break;
      }
    }

  return(TRUE);
}

Referenced by DesktopWndProcA(), MsgiAnsiToUnicodeReply(), SendMessageA(), SendMessageCallbackA(), SendMessageTimeoutA(), and SendNotifyMessageA().

MsgiAnsiToUnicodeMessage()

static BOOL FASTCALL MsgiAnsiToUnicodeMessage ( HWND  hwnd, LPMSG  UnicodeMsg, LPMSG  AnsiMsg  )

static

Definition at line 516 of file message.c.

{
  UNICODE_STRING UnicodeString;

  *UnicodeMsg = *AnsiMsg;

  switch (AnsiMsg->message)
    {
    case WM_GETTEXT:
    case WM_ASKCBFORMATNAME:
      {
        LPWSTR Buffer;
        if (!AnsiMsg->lParam) break;
        Buffer = RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, AnsiMsg->wParam * sizeof(WCHAR));
        //ERR("WM_GETTEXT A2U Size %d\n",AnsiMsg->wParam);
        if (!Buffer) return FALSE;
        UnicodeMsg->lParam = (LPARAM)Buffer;
        break;
      }

    case LB_GETTEXT:
      {
        DWORD Size = 1024 * sizeof(WCHAR);
        if (!AnsiMsg->lParam || !listbox_has_strings( AnsiMsg->hwnd )) break;
        /*Size = SendMessageW( AnsiMsg->hwnd, LB_GETTEXTLEN, AnsiMsg->wParam, 0 );
        if (Size == LB_ERR)
        {
           ERR("LB_GETTEXT LB_ERR\n");
           Size = sizeof(ULONG_PTR);
        }
        Size = (Size + 1) * sizeof(WCHAR);*/
        UnicodeMsg->lParam = (LPARAM) RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, Size);
        if (!UnicodeMsg->lParam) return FALSE;
        break;
      }

    case CB_GETLBTEXT:
      {
        DWORD Size = 1024 * sizeof(WCHAR);
        if (!AnsiMsg->lParam || !combobox_has_strings( AnsiMsg->hwnd )) break;
        /*Size = SendMessageW( AnsiMsg->hwnd, CB_GETLBTEXTLEN, AnsiMsg->wParam, 0 );
        if (Size == LB_ERR)
        {
           ERR("CB_GETTEXT LB_ERR\n");
           Size = sizeof(ULONG_PTR);
        }
        Size = (Size + 1) * sizeof(WCHAR);*/
        UnicodeMsg->lParam = (LPARAM) RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, Size);
        if (!UnicodeMsg->lParam) return FALSE;
        break;
      }

    /* AnsiMsg->lParam is string (0-terminated) */
    case WM_SETTEXT:
    case WM_WININICHANGE:
    case WM_DEVMODECHANGE:
    case CB_DIR:
    case LB_DIR:
    case LB_ADDFILE:
    case EM_REPLACESEL:
      {
        if (!AnsiMsg->lParam) break;
        RtlCreateUnicodeStringFromAsciiz(&UnicodeString, (LPSTR)AnsiMsg->lParam);
        UnicodeMsg->lParam = (LPARAM)UnicodeString.Buffer;
        break;
      }

    case LB_ADDSTRING:
    case LB_ADDSTRING_LOWER:
    case LB_ADDSTRING_UPPER:
    case LB_INSERTSTRING:
    case LB_INSERTSTRING_UPPER:
    case LB_INSERTSTRING_LOWER:
    case LB_FINDSTRING:
    case LB_FINDSTRINGEXACT:
    case LB_SELECTSTRING:
      {
        if (AnsiMsg->lParam && listbox_has_strings(AnsiMsg->hwnd))
          {
            RtlCreateUnicodeStringFromAsciiz(&UnicodeString, (LPSTR)AnsiMsg->lParam);
            UnicodeMsg->lParam = (LPARAM)UnicodeString.Buffer;
          }
        break;
      }

    case CB_ADDSTRING:
    case CB_INSERTSTRING:
    case CB_FINDSTRING:
    case CB_FINDSTRINGEXACT:
    case CB_SELECTSTRING:
      {
        if (AnsiMsg->lParam && combobox_has_strings(AnsiMsg->hwnd))
          {
            RtlCreateUnicodeStringFromAsciiz(&UnicodeString, (LPSTR)AnsiMsg->lParam);
            UnicodeMsg->lParam = (LPARAM)UnicodeString.Buffer;
          }
        break;
      }

    case WM_NCCREATE:
    case WM_CREATE:
      {
        struct s
        {
           CREATESTRUCTW cs;          /* new structure */
           MDICREATESTRUCTW mdi_cs;   /* MDI info */
           LPCWSTR lpszName;          /* allocated Name */
           LPCWSTR lpszClass;         /* allocated Class */
        };

        struct s *xs = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct s));
        if (!xs)
          {
            return FALSE;
          }
        xs->cs = *(CREATESTRUCTW *)AnsiMsg->lParam;
        if (!IS_INTRESOURCE(xs->cs.lpszName))
          {
            RtlCreateUnicodeStringFromAsciiz(&UnicodeString, (LPSTR)xs->cs.lpszName);
            xs->lpszName = xs->cs.lpszName = UnicodeString.Buffer;
          }
        if (!IS_ATOM(xs->cs.lpszClass))
          {
            RtlCreateUnicodeStringFromAsciiz(&UnicodeString, (LPSTR)xs->cs.lpszClass);
            xs->lpszClass = xs->cs.lpszClass = UnicodeString.Buffer;
          }

        if (GetWindowLongW(hwnd, GWL_EXSTYLE) & WS_EX_MDICHILD)
        {
           xs->mdi_cs = *(MDICREATESTRUCTW *)xs->cs.lpCreateParams;
           xs->mdi_cs.szTitle = xs->cs.lpszName;
           xs->mdi_cs.szClass = xs->cs.lpszClass;
           xs->cs.lpCreateParams = &xs->mdi_cs;
        }

        UnicodeMsg->lParam = (LPARAM)xs;
        break;
      }

    case WM_MDICREATE:
      {
        MDICREATESTRUCTW *cs =
            (MDICREATESTRUCTW *)HeapAlloc(GetProcessHeap(), 0, sizeof(*cs));

        if (!cs)
          {
            return FALSE;
          }

        *cs = *(MDICREATESTRUCTW *)AnsiMsg->lParam;

        if (!IS_ATOM(cs->szClass))
          {
            RtlCreateUnicodeStringFromAsciiz(&UnicodeString, (LPSTR)cs->szClass);
            cs->szClass = UnicodeString.Buffer;
          }

        RtlCreateUnicodeStringFromAsciiz(&UnicodeString, (LPSTR)cs->szTitle);
        cs->szTitle = UnicodeString.Buffer;

        UnicodeMsg->lParam = (LPARAM)cs;
        break;
      }

    case WM_GETDLGCODE:
      if (UnicodeMsg->lParam)
      {
         MSG newmsg = *(MSG *)UnicodeMsg->lParam;
         newmsg.wParam = map_wparam_AtoW( newmsg.message, newmsg.wParam);
      }
      break;

    case WM_CHARTOITEM:
    case WM_MENUCHAR:
    case WM_CHAR:
    case WM_DEADCHAR:
    case WM_SYSCHAR:
    case WM_SYSDEADCHAR:
    case EM_SETPASSWORDCHAR:
    case WM_IME_CHAR:
      UnicodeMsg->wParam = map_wparam_AtoW( AnsiMsg->message, AnsiMsg->wParam );
      break;
    case EM_GETLINE:
      ERR("FIXME EM_GETLINE A2U\n");
      break;

    }

  return TRUE;
}

Referenced by DesktopWndProcA(), DispatchMessageA(), IntCallWindowProcA(), SendMessageA(), SendMessageCallbackA(), SendMessageTimeoutA(), and SendNotifyMessageA().

MsgiAnsiToUnicodeReply()

static BOOL FASTCALL MsgiAnsiToUnicodeReply ( LPMSG  UnicodeMsg, LPMSG  AnsiMsg, LRESULT *  Result  )

static

Definition at line 820 of file message.c.

{
  LPWSTR Buffer = (LPWSTR)UnicodeMsg->lParam;
  LPSTR AnsiBuffer = (LPSTR)AnsiMsg->lParam;

  switch (AnsiMsg->message)
    {
    case WM_GETTEXT:
    case WM_ASKCBFORMATNAME:
      {
        if (UnicodeMsg->wParam)
        {
           DWORD len = 0;
           if (*Result) RtlUnicodeToMultiByteN( AnsiBuffer, UnicodeMsg->wParam - 1, &len, Buffer, strlenW(Buffer) * sizeof(WCHAR));
           AnsiBuffer[len] = 0;
           *Result = len;
           //ERR("WM_GETTEXT U2A Result %d Size %d\n",*Result,AnsiMsg->wParam);
        }
        break;
      }
    case LB_GETTEXT:
      {
        if (!AnsiBuffer || !listbox_has_strings( UnicodeMsg->hwnd )) break;
        if (*Result >= 0)
        {
           DWORD len;
           RtlUnicodeToMultiByteN( AnsiBuffer, ~0u, &len, Buffer, (strlenW(Buffer) + 1) * sizeof(WCHAR) );
           *Result = len - 1;
        }
        break;
      }
    case CB_GETLBTEXT:
      {
        if (!AnsiBuffer || !combobox_has_strings( UnicodeMsg->hwnd )) break;
        if (*Result >= 0)
        {
           DWORD len;
           RtlUnicodeToMultiByteN( AnsiBuffer, ~0u, &len, Buffer, (strlenW(Buffer) + 1) * sizeof(WCHAR) );
           *Result = len - 1;
        }
        break;
      }
    }

  MsgiAnsiToUnicodeCleanup(UnicodeMsg, AnsiMsg);

  return TRUE;
}

Referenced by DispatchMessageA(), IntCallWindowProcA(), SendMessageA(), and SendMessageTimeoutA().

MsgiKMToUMCleanup()

static VOID FASTCALL MsgiKMToUMCleanup ( PMSG  KMMsg, PMSG  UMMsg  )

static

Definition at line 487 of file message.c.

{
  switch (KMMsg->message)
    {
      case WM_DDE_EXECUTE:
#ifdef TODO // Kept as historic.
        HeapFree(GetProcessHeap(), 0, (LPVOID) KMMsg->lParam);
        GlobalUnlock((HGLOBAL) UMMsg->lParam);
#endif
        break;
      default:
        break;
    }

  return;
}

Referenced by MsgiKMToUMReply().

MsgiKMToUMMessage()

static BOOL FASTCALL MsgiKMToUMMessage ( PMSG  KMMsg, PMSG  UMMsg  )

static

Definition at line 431 of file message.c.

{
  *UMMsg = *KMMsg;

  if (KMMsg->lParam == 0) return TRUE;

  switch (UMMsg->message)
    {
      case WM_CREATE:
      case WM_NCCREATE:
        {
          CREATESTRUCTW *Cs = (CREATESTRUCTW *) KMMsg->lParam;
          PCHAR Class;
          Cs->lpszName = (LPCWSTR) ((PCHAR) Cs + (DWORD_PTR) Cs->lpszName);
          Class = (PCHAR) Cs + (DWORD_PTR) Cs->lpszClass;
          if (L'A' == *((WCHAR *) Class))
            {
              Class += sizeof(WCHAR);
              Cs->lpszClass = (LPCWSTR)(DWORD_PTR) (*((ATOM *) Class));
            }
          else
            {
              ASSERT(L'S' == *((WCHAR *) Class));
              Class += sizeof(WCHAR);
              Cs->lpszClass = (LPCWSTR) Class;
            }
        }
        break;

      case WM_COPYDATA:
        {
          PCOPYDATASTRUCT pKMCopyData = (PCOPYDATASTRUCT)KMMsg->lParam;
          pKMCopyData->lpData = pKMCopyData + 1;
        }
        break;

      case WM_COPYGLOBALDATA:
        {
           PVOID Data;
           HGLOBAL hGlobal = GlobalAlloc(GHND | GMEM_SHARE, KMMsg->wParam);
           Data = GlobalLock(hGlobal);
           if (Data) RtlCopyMemory(Data, (PVOID)KMMsg->lParam, KMMsg->wParam);
           GlobalUnlock(hGlobal);
           TRACE("WM_COPYGLOBALDATA to User hGlobal %p\n",hGlobal);
           UMMsg->lParam = (LPARAM)hGlobal;
        }
        break;

      default:
        break;
    }

  return TRUE;
}

Referenced by User32CallWindowProcFromKernel().

MsgiKMToUMReply()

static BOOL FASTCALL MsgiKMToUMReply ( PMSG  KMMsg, PMSG  UMMsg, LRESULT *  Result  )

static

Definition at line 505 of file message.c.

{
  MsgiKMToUMCleanup(KMMsg, UMMsg);

  return TRUE;
}

Referenced by User32CallWindowProcFromKernel().

MsgiUMToKMCleanup()

static VOID FASTCALL MsgiUMToKMCleanup ( PMSG  UMMsg, PMSG  KMMsg  )

static

Definition at line 411 of file message.c.

{
  switch (KMMsg->message)
    {
      case WM_COPYDATA:
        HeapFree(GetProcessHeap(), 0, (LPVOID) KMMsg->lParam);
        break;
      case WM_COPYGLOBALDATA:
        TRACE("WM_COPYGLOBALDATA cleanup return\n");
        GlobalUnlock((HGLOBAL)UMMsg->lParam);
        GlobalFree((HGLOBAL)UMMsg->lParam);
        break;
      default:
        break;
    }

  return;
}

Referenced by SendMessageA(), SendMessageTimeoutA(), SendMessageTimeoutW(), and SendMessageW().

MsgiUMToKMMessage()

static BOOL FASTCALL MsgiUMToKMMessage ( PMSG  UMMsg, PMSG  KMMsg, BOOL  Posted  )

static

Definition at line 367 of file message.c.

{
  *KMMsg = *UMMsg;

  switch (UMMsg->message)
    {
      case WM_COPYDATA:
        {
          PCOPYDATASTRUCT pUMCopyData = (PCOPYDATASTRUCT)UMMsg->lParam;
          PCOPYDATASTRUCT pKMCopyData;

          pKMCopyData = HeapAlloc(GetProcessHeap(), 0, sizeof(COPYDATASTRUCT) + pUMCopyData->cbData);
          if (!pKMCopyData)
          {
              SetLastError(ERROR_OUTOFMEMORY);
              return FALSE;
          }

          pKMCopyData->dwData = pUMCopyData->dwData;
          pKMCopyData->cbData = pUMCopyData->cbData;
          pKMCopyData->lpData = pKMCopyData + 1;

          RtlCopyMemory(pKMCopyData + 1, pUMCopyData->lpData, pUMCopyData->cbData);

          KMMsg->lParam = (LPARAM)pKMCopyData;
        }
        break;

      case WM_COPYGLOBALDATA:
        {
           KMMsg->lParam = (LPARAM)GlobalLock((HGLOBAL)UMMsg->lParam);;
           TRACE("WM_COPYGLOBALDATA get data ptr %p\n",KMMsg->lParam);
        }
        break;

      default:
        break;
    }

  return TRUE;
}

Referenced by SendMessageA(), SendMessageTimeoutA(), SendMessageTimeoutW(), and SendMessageW().

MsgiUnicodeToAnsiCleanup()

static BOOL FASTCALL MsgiUnicodeToAnsiCleanup ( LPMSG  AnsiMsg, LPMSG  UnicodeMsg  )

static

Definition at line 1155 of file message.c.

{
  ANSI_STRING AnsiString;

  switch(UnicodeMsg->message)
    {
      case LB_GETTEXT:
        if (!listbox_has_strings( AnsiMsg->hwnd )) break;
      case CB_GETLBTEXT:
        if (AnsiMsg->message == CB_GETLBTEXT && !combobox_has_strings( AnsiMsg->hwnd )) break;
      case WM_GETTEXT:
      case WM_ASKCBFORMATNAME:
        {
          if (!AnsiMsg->lParam) break;
          RtlFreeHeap(GetProcessHeap(), 0, (PVOID) AnsiMsg->lParam);
          break;
        }
      case WM_CREATE:
      case WM_NCCREATE:
        {
          CREATESTRUCTA* Cs;

          Cs = (CREATESTRUCTA*) AnsiMsg->lParam;
          RtlFreeHeap(GetProcessHeap(), 0, Cs);
          break;
        }

      case WM_SETTEXT:
      case WM_WININICHANGE:
      case WM_DEVMODECHANGE:
      case CB_DIR:
      case LB_DIR:
      case LB_ADDFILE:
      case EM_REPLACESEL:
        {
          if (!AnsiMsg->lParam) break;
          RtlInitAnsiString(&AnsiString, (PSTR) AnsiMsg->lParam);
          RtlFreeAnsiString(&AnsiString);
          break;
        }

      case LB_ADDSTRING:
      case LB_ADDSTRING_LOWER:
      case LB_ADDSTRING_UPPER:
      case LB_INSERTSTRING:
      case LB_INSERTSTRING_UPPER:
      case LB_INSERTSTRING_LOWER:
      case LB_FINDSTRING:
      case LB_FINDSTRINGEXACT:
      case LB_SELECTSTRING:
        {
          if (AnsiMsg->lParam && listbox_has_strings(AnsiMsg->hwnd))
            {
              RtlInitAnsiString(&AnsiString, (PSTR) AnsiMsg->lParam);
              RtlFreeAnsiString(&AnsiString);
            }
          break;
        }

      case CB_ADDSTRING:
      case CB_INSERTSTRING:
      case CB_FINDSTRING:
      case CB_FINDSTRINGEXACT:
      case CB_SELECTSTRING:
        {
          if (AnsiMsg->lParam && combobox_has_strings(AnsiMsg->hwnd))
            {
              RtlInitAnsiString(&AnsiString, (PSTR) AnsiMsg->lParam);
              RtlFreeAnsiString(&AnsiString);
            }
          break;
        }

      case WM_MDICREATE:
        {
          MDICREATESTRUCTA *cs = (MDICREATESTRUCTA *)AnsiMsg->lParam;
          RtlInitAnsiString(&AnsiString, (PCSTR)cs->szTitle);
          RtlFreeAnsiString(&AnsiString);
          if (!IS_ATOM(cs->szClass))
            {
              RtlInitAnsiString(&AnsiString, (PCSTR)cs->szClass);
              RtlFreeAnsiString(&AnsiString);
            }
          HeapFree(GetProcessHeap(), 0, cs);
          break;
        }

    }

  return TRUE;
}

Referenced by MsgiUnicodeToAnsiReply().

MsgiUnicodeToAnsiMessage()

static BOOL FASTCALL MsgiUnicodeToAnsiMessage ( HWND  hwnd, LPMSG  AnsiMsg, LPMSG  UnicodeMsg  )

static

Definition at line 873 of file message.c.

{
  ANSI_STRING AnsiString;
  UNICODE_STRING UnicodeString;

  *AnsiMsg = *UnicodeMsg;

  switch(UnicodeMsg->message)
    {
      case WM_CREATE:
      case WM_NCCREATE:
        {
          MDICREATESTRUCTA *pmdi_cs;
          CREATESTRUCTA* CsA;
          CREATESTRUCTW* CsW;
          ULONG NameSize, ClassSize;
          NTSTATUS Status;

          CsW = (CREATESTRUCTW*)(UnicodeMsg->lParam);
          RtlInitUnicodeString(&UnicodeString, CsW->lpszName);
          NameSize = RtlUnicodeStringToAnsiSize(&UnicodeString);
          if (NameSize == 0)
            {
              return FALSE;
            }
          ClassSize = 0;
          if (!IS_ATOM(CsW->lpszClass))
            {
              RtlInitUnicodeString(&UnicodeString, CsW->lpszClass);
              ClassSize = RtlUnicodeStringToAnsiSize(&UnicodeString);
              if (ClassSize == 0)
                {
                  return FALSE;
                }
            }

          CsA = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(CREATESTRUCTA) + sizeof(MDICREATESTRUCTA) + NameSize + ClassSize);
          if (NULL == CsA)
            {
              return FALSE;
            }
          memcpy(CsA, CsW, sizeof(CREATESTRUCTW));

          /* pmdi_cs starts right after CsA */
          pmdi_cs = (MDICREATESTRUCTA*)(CsA + 1);

          RtlInitUnicodeString(&UnicodeString, CsW->lpszName);
          RtlInitEmptyAnsiString(&AnsiString, (PCHAR)(pmdi_cs + 1), NameSize);
          Status = RtlUnicodeStringToAnsiString(&AnsiString, &UnicodeString, FALSE);
          if (! NT_SUCCESS(Status))
            {
              RtlFreeHeap(GetProcessHeap(), 0, CsA);
              return FALSE;
            }
          CsA->lpszName = AnsiString.Buffer;
          if (!IS_ATOM(CsW->lpszClass))
            {
              RtlInitUnicodeString(&UnicodeString, CsW->lpszClass);
              RtlInitEmptyAnsiString(&AnsiString, (PCHAR)(pmdi_cs + 1) + NameSize, ClassSize);
              Status = RtlUnicodeStringToAnsiString(&AnsiString, &UnicodeString, FALSE);
              if (! NT_SUCCESS(Status))
                {
                  RtlFreeHeap(GetProcessHeap(), 0, CsA);
                  return FALSE;
                }
              CsA->lpszClass = AnsiString.Buffer;
            }

          if (GetWindowLongW(hwnd, GWL_EXSTYLE) & WS_EX_MDICHILD)
          {
             *pmdi_cs = *(MDICREATESTRUCTA *)CsW->lpCreateParams;
             pmdi_cs->szTitle = CsA->lpszName;
             pmdi_cs->szClass = CsA->lpszClass;
             CsA->lpCreateParams = pmdi_cs;
          }

          AnsiMsg->lParam = (LPARAM)CsA;
          break;
        }
      case WM_GETTEXT:
      case WM_ASKCBFORMATNAME:
        {
          if (!UnicodeMsg->lParam) break;
          /* Ansi string might contain MBCS chars so we need 2 * the number of chars */
          AnsiMsg->lParam = (LPARAM) RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, UnicodeMsg->wParam * 2);
          //ERR("WM_GETTEXT U2A Size %d\n",AnsiMsg->wParam);

          if (!AnsiMsg->lParam) return FALSE;
          break;
        }

    case LB_GETTEXT:
      {
        DWORD Size = 1024;
        if (!UnicodeMsg->lParam || !listbox_has_strings( UnicodeMsg->hwnd )) break;
        /*Size = SendMessageA( UnicodeMsg->hwnd, LB_GETTEXTLEN, UnicodeMsg->wParam, 0 );
        if (Size == LB_ERR)
        {
           ERR("LB_GETTEXT LB_ERR\n");
           Size = sizeof(ULONG_PTR);
        }
        Size = (Size + 1) * sizeof(WCHAR);*/
        AnsiMsg->lParam = (LPARAM) RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, Size);
        if (!AnsiMsg->lParam) return FALSE;
        break;
      }

    case CB_GETLBTEXT:
      {
        DWORD Size = 1024;
        if (!UnicodeMsg->lParam || !combobox_has_strings( UnicodeMsg->hwnd )) break;
        /*Size = SendMessageA( UnicodeMsg->hwnd, CB_GETLBTEXTLEN, UnicodeMsg->wParam, 0 );
        if (Size == LB_ERR)
        {
           ERR("CB_GETTEXT LB_ERR\n");
           Size = sizeof(ULONG_PTR);
        }
        Size = (Size + 1) * sizeof(WCHAR);*/
        AnsiMsg->lParam = (LPARAM) RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, Size);
        if (!AnsiMsg->lParam) return FALSE;
        break;
      }

      case WM_SETTEXT:
      case WM_WININICHANGE:
      case WM_DEVMODECHANGE:
      case CB_DIR:
      case LB_DIR:
      case LB_ADDFILE:
      case EM_REPLACESEL:
        {
          if (!UnicodeMsg->lParam) break;
          RtlInitUnicodeString(&UnicodeString, (PWSTR) UnicodeMsg->lParam);
          if (! NT_SUCCESS(RtlUnicodeStringToAnsiString(&AnsiString,
                                                        &UnicodeString,
                                                        TRUE)))
            {
              return FALSE;
            }
          AnsiMsg->lParam = (LPARAM) AnsiString.Buffer;
          break;
        }

      case LB_ADDSTRING:
      case LB_ADDSTRING_LOWER:
      case LB_ADDSTRING_UPPER:
      case LB_INSERTSTRING:
      case LB_INSERTSTRING_UPPER:
      case LB_INSERTSTRING_LOWER:
      case LB_FINDSTRING:
      case LB_FINDSTRINGEXACT:
      case LB_SELECTSTRING:
        {
          if (UnicodeMsg->lParam && listbox_has_strings(AnsiMsg->hwnd))
            {
              RtlInitUnicodeString(&UnicodeString, (PWSTR) UnicodeMsg->lParam);
              if (! NT_SUCCESS(RtlUnicodeStringToAnsiString(&AnsiString,
                                                            &UnicodeString,
                                                            TRUE)))
                {
                  return FALSE;
                }
              AnsiMsg->lParam = (LPARAM) AnsiString.Buffer;
            }
          break;
        }

      case CB_ADDSTRING:
      case CB_INSERTSTRING:
      case CB_FINDSTRING:
      case CB_FINDSTRINGEXACT:
      case CB_SELECTSTRING:
        {
          if (UnicodeMsg->lParam && combobox_has_strings(AnsiMsg->hwnd))
            {
              RtlInitUnicodeString(&UnicodeString, (PWSTR) UnicodeMsg->lParam);
              if (! NT_SUCCESS(RtlUnicodeStringToAnsiString(&AnsiString,
                                                            &UnicodeString,
                                                            TRUE)))
                {
                  return FALSE;
                }
              AnsiMsg->lParam = (LPARAM) AnsiString.Buffer;
            }
          break;
        }

      case WM_MDICREATE:
        {
          MDICREATESTRUCTA *cs =
              (MDICREATESTRUCTA *)HeapAlloc(GetProcessHeap(), 0, sizeof(*cs));

          if (!cs)
            {
              return FALSE;
            }

          *cs = *(MDICREATESTRUCTA *)UnicodeMsg->lParam;

          if (!IS_ATOM(cs->szClass))
            {
              RtlInitUnicodeString(&UnicodeString, (LPCWSTR)cs->szClass);
              if (! NT_SUCCESS(RtlUnicodeStringToAnsiString(&AnsiString,
                                                            &UnicodeString,
                                                            TRUE)))
                {
                  HeapFree(GetProcessHeap(), 0, cs);
                  return FALSE;
                }
              cs->szClass = AnsiString.Buffer;
            }

          RtlInitUnicodeString(&UnicodeString, (LPCWSTR)cs->szTitle);
          if (! NT_SUCCESS(RtlUnicodeStringToAnsiString(&AnsiString,
                                                        &UnicodeString,
                                                        TRUE)))
            {
              if (!IS_ATOM(cs->szClass))
                {
                  RtlInitAnsiString(&AnsiString, cs->szClass);
                  RtlFreeAnsiString(&AnsiString);
                }

              HeapFree(GetProcessHeap(), 0, cs);
              return FALSE;
            }
          cs->szTitle = AnsiString.Buffer;

          AnsiMsg->lParam = (LPARAM)cs;
          break;
        }

      case WM_GETDLGCODE:
        if (UnicodeMsg->lParam)
        {
           MSG newmsg = *(MSG *)UnicodeMsg->lParam;
           switch(newmsg.message)
           {
              case WM_CHAR:
              case WM_DEADCHAR:
              case WM_SYSCHAR:
              case WM_SYSDEADCHAR:
                newmsg.wParam = map_wparam_char_WtoA( newmsg.wParam, 1 );
                break;
              case WM_IME_CHAR:
                newmsg.wParam = map_wparam_char_WtoA( newmsg.wParam, 2 );
                break;
           }
        }
        break;

      case WM_CHAR:
        {
           WCHAR wch = UnicodeMsg->wParam;
           char ch[2];
           DWORD cp = get_input_codepage();
           DWORD len = WideCharToMultiByte( cp, 0, &wch, 1, ch, 2, NULL, NULL );
           AnsiMsg->wParam = (BYTE)ch[0];
           if (len == 2) AnsiMsg->wParam = (BYTE)ch[1];
        }
        break;

      case WM_CHARTOITEM:
      case WM_MENUCHAR:
      case WM_DEADCHAR:
      case WM_SYSCHAR:
      case WM_SYSDEADCHAR:
      case EM_SETPASSWORDCHAR:
          AnsiMsg->wParam = map_wparam_char_WtoA(UnicodeMsg->wParam,1);
          break;

      case WM_IME_CHAR:
          AnsiMsg->wParam = map_wparam_char_WtoA(UnicodeMsg->wParam,2);
          break;
      case EM_GETLINE:
          ERR("FIXME EM_GETLINE U2A\n");
          break;
    }
  return TRUE;
}

Referenced by IntCallWindowProcW().

MsgiUnicodeToAnsiReply()

static BOOL FASTCALL MsgiUnicodeToAnsiReply ( LPMSG  AnsiMsg, LPMSG  UnicodeMsg, LRESULT *  Result  )

static

Definition at line 1251 of file message.c.

{
  LPSTR Buffer = (LPSTR) AnsiMsg->lParam;
  LPWSTR UBuffer = (LPWSTR) UnicodeMsg->lParam;

  switch (UnicodeMsg->message)
    {
    case WM_GETTEXT:
    case WM_ASKCBFORMATNAME:
      {
        DWORD len = AnsiMsg->wParam;// * 2;
        if (len)
        {
           if (*Result)
           {
              RtlMultiByteToUnicodeN( UBuffer, AnsiMsg->wParam*sizeof(WCHAR), &len, Buffer, strlen(Buffer)+1 );
              *Result = len/sizeof(WCHAR) - 1;  /* do not count terminating null */
              //ERR("WM_GETTEXT U2A Result %d Size %d\n",*Result,AnsiMsg->wParam);
           }
           UBuffer[*Result] = 0;
        }
        break;
      }
    case LB_GETTEXT:
      {
        if (!UBuffer || !listbox_has_strings( UnicodeMsg->hwnd )) break;
        if (*Result >= 0)
        {
           DWORD len;
           RtlMultiByteToUnicodeN( UBuffer, ~0u, &len, Buffer, strlen(Buffer) + 1 );
           *Result = len / sizeof(WCHAR) - 1;
        }
        break;
      }
    case CB_GETLBTEXT:
      {
        if (!UBuffer || !combobox_has_strings( UnicodeMsg->hwnd )) break;
        if (*Result >= 0)
        {
           DWORD len;
           RtlMultiByteToUnicodeN( UBuffer, ~0u, &len, Buffer, strlen(Buffer) + 1 );
           *Result = len / sizeof(WCHAR) - 1;
        }
        break;
      }
    }

  MsgiUnicodeToAnsiCleanup(AnsiMsg, UnicodeMsg);

  return TRUE;
}

Referenced by IntCallWindowProcW().

MsgWaitForMultipleObjects()

DWORD WINAPI MsgWaitForMultipleObjects	(	DWORD	nCount,
		CONST HANDLE *	lpHandles,
		BOOL	fWaitAll,
		DWORD	dwMilliseconds,
		DWORD	dwWakeMask
	)

Definition at line 3261 of file message.c.

{
   return MsgWaitForMultipleObjectsEx(nCount, lpHandles, dwMilliseconds,
                                      dwWakeMask, fWaitAll ? MWMO_WAITALL : 0);
}

MsgWaitForMultipleObjectsEx()

DWORD WINAPI MsgWaitForMultipleObjectsEx	(	DWORD	nCount,
		CONST HANDLE *	lpHandles,
		DWORD	dwMilliseconds,
		DWORD	dwWakeMask,
		DWORD	dwFlags
	)

Definition at line 3247 of file message.c.

{
   return IsInsideMessagePumpHook() ? gmph.RealMsgWaitForMultipleObjectsEx(nCount, lpHandles, dwMilliseconds, dwWakeMask, dwFlags) : RealMsgWaitForMultipleObjectsEx(nCount, lpHandles,dwMilliseconds, dwWakeMask, dwFlags);
}

Referenced by MsgWaitForMultipleObjects().

PeekMessageA()

BOOL WINAPI DECLSPEC_HOTPATCH PeekMessageA	(	LPMSG	lpMsg,
		HWND	hWnd,
		UINT	wMsgFilterMin,
		UINT	wMsgFilterMax,
		UINT	wRemoveMsg
	)

Definition at line 2186 of file message.c.

{
  BOOL Res;

  Res = PeekMessageWorker(lpMsg, hWnd, wMsgFilterMin, wMsgFilterMax, wRemoveMsg);
  if (-1 == (int) Res || !Res)
  {
      return FALSE;
  }

  IntConvertMsgToAnsi(lpMsg);

  return Res;
}

PeekMessageW()

BOOL WINAPI DECLSPEC_HOTPATCH PeekMessageW	(	LPMSG	lpMsg,
		HWND	hWnd,
		UINT	wMsgFilterMin,
		UINT	wMsgFilterMax,
		UINT	wRemoveMsg
	)

Definition at line 2212 of file message.c.

{
  BOOL Res;

  Res = PeekMessageWorker(lpMsg, hWnd, wMsgFilterMin, wMsgFilterMax, wRemoveMsg);
  if (-1 == (int) Res || !Res)
  {
      return FALSE;
  }

  return Res;
}

PeekMessageWorker()

BOOL WINAPI PeekMessageWorker	(	PMSG	pMsg,
		HWND	hWnd,
		UINT	wMsgFilterMin,
		UINT	wMsgFilterMax,
		UINT	wRemoveMsg
	)

Definition at line 2144 of file message.c.

{
  PCLIENTINFO pci;
  PCLIENTTHREADINFO pcti;
  pci = GetWin32ClientInfo();
  pcti = pci->pClientThreadInfo;

  if (!hWnd && pci && pcti)
  {
     pci->cSpins++;

     if ((pci->cSpins >= 100) && (pci->dwTIFlags & TIF_SPINNING))
     {  // Yield after 100 spin cycles and ready to swap vinyl.
        if (!(pci->dwTIFlags & TIF_WAITFORINPUTIDLE))
        {  // Not waiting for idle event.
           if (!pcti->fsChangeBits && !pcti->fsWakeBits)
           {  // No messages are available.
              if ((GetTickCount() - pcti->tickLastMsgChecked) > 1000)
              {  // Up the msg read count if over 1 sec.
                 NtUserGetThreadState(THREADSTATE_UPTIMELASTREAD);
              }
              pci->cSpins = 0;
              ZwYieldExecution();
              FIXME("seeSpins!\n");
              return FALSE;
           }
        }
     }
  }
  return NtUserPeekMessage(pMsg, hWnd, wMsgFilterMin, wMsgFilterMax, wRemoveMsg);
}

Referenced by PeekMessageA(), and PeekMessageW().

PostMessageA()

BOOL WINAPI PostMessageA	(	HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 2235 of file message.c.

{
  LRESULT Ret;

  /* Check for combo box or a list box to send names. */
  if (Msg == CB_DIR || Msg == LB_DIR)
  {
  /*
     Set DDL_POSTMSGS, so use the PostMessage function to send messages to the
     combo/list box. Forces a call like DlgDirListComboBox.
  */
    //wParam |= DDL_POSTMSGS;
    return NtUserPostMessage(hWnd, Msg, wParam, lParam);
  }

  /* No drop files or current Process, just post message. */
  if ( (Msg != WM_DROPFILES) ||
       ( NtUserQueryWindow( hWnd, QUERY_WINDOW_UNIQUE_PROCESS_ID) ==
                  PtrToUint(NtCurrentTeb()->ClientId.UniqueProcess) ) )
  {
    return NtUserPostMessage(hWnd, Msg, wParam, lParam);
  }

  /* We have drop files and this is not the same process for this window. */

  /* Just incase, check wParam for Global memory handle and send size. */
  Ret = SendMessageA( hWnd,
                      WM_COPYGLOBALDATA,
                      (WPARAM)GlobalSize((HGLOBAL)wParam), // Zero if not a handle.
                      (LPARAM)wParam);                     // Send wParam as lParam.

  if ( Ret ) return NtUserPostMessage(hWnd, Msg, (WPARAM)Ret, lParam);

  return FALSE;
}

PostMessageW()

BOOL WINAPI PostMessageW	(	HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 2280 of file message.c.

{
  LRESULT Ret;

  /* Check for combo box or a list box to send names. */
  if (Msg == CB_DIR || Msg == LB_DIR)
  {
  /*
     Set DDL_POSTMSGS, so use the PostMessage function to send messages to the
     combo/list box. Forces a call like DlgDirListComboBox.
  */
    //wParam |= DDL_POSTMSGS;
    return NtUserPostMessage(hWnd, Msg, wParam, lParam);
  }

  /* No drop files or current Process, just post message. */
  if ( (Msg != WM_DROPFILES) ||
       ( NtUserQueryWindow( hWnd, QUERY_WINDOW_UNIQUE_PROCESS_ID) ==
                  PtrToUint(NtCurrentTeb()->ClientId.UniqueProcess) ) )
  {
    return NtUserPostMessage(hWnd, Msg, wParam, lParam);
  }

  /* We have drop files and this is not the same process for this window. */

  /* Just incase, check wParam for Global memory handle and send size. */
  Ret = SendMessageW( hWnd,
                      WM_COPYGLOBALDATA,
                      (WPARAM)GlobalSize((HGLOBAL)wParam), // Zero if not a handle.
                      (LPARAM)wParam);                     // Send wParam as lParam.

  if ( Ret ) return NtUserPostMessage(hWnd, Msg, (WPARAM)Ret, lParam);

  return FALSE;
}