#include <user32.h>

Include dependency graph for misc.c:

Functions
VOID WINAPI	UserSetLastError (IN DWORD dwErrCode)

VOID WINAPI	UserSetLastNTError (IN NTSTATUS Status)

PTHREADINFO	GetW32ThreadInfo (VOID)

BOOL WINAPI	GetUserObjectSecurity (IN HANDLE hObject, IN PSECURITY_INFORMATION pSecurityInfo, OUT PSECURITY_DESCRIPTOR pSecurityDescriptor, IN DWORD dwLength, OUT PDWORD pdwLengthNeeded)

BOOL WINAPI	SetUserObjectSecurity (IN HANDLE hObject, IN PSECURITY_INFORMATION pSecurityInfo, IN PSECURITY_DESCRIPTOR pSecurityDescriptor)

BOOL WINAPI	IsGUIThread (BOOL bConvert)

BOOL FASTCALL	TestWindowProcess (PWND Wnd)

BOOL FASTCALL	TestState (PWND pWnd, UINT Flag)

PUSER_HANDLE_ENTRY FASTCALL	GetUser32Handle (HANDLE handle)

PVOID FASTCALL	ValidateHandle (HANDLE handle, UINT uType)

PVOID FASTCALL	ValidateHandleNoErr (HANDLE handle, UINT uType)

PCALLPROCDATA FASTCALL	ValidateCallProc (HANDLE hCallProc)

PWND FASTCALL	ValidateHwnd (HWND hwnd)

PWND FASTCALL	ValidateHwndNoErr (HWND hwnd)

PWND FASTCALL	GetThreadDesktopWnd (VOID)

PWND FASTCALL	ValidateHwndOrDesk (HWND hwnd)

DWORD WINAPI	WCSToMBEx (WORD CodePage, LPWSTR UnicodeString, LONG UnicodeSize, LPSTR *MBString, LONG MBSize, BOOL Allocate)

DWORD WINAPI	MBToWCSEx (WORD CodePage, LPSTR MBString, LONG MBSize, LPWSTR *UnicodeString, LONG UnicodeSize, BOOL Allocate)

Variables
static const BOOL	g_ObjectHeapTypeShared [TYPE_CTYPES]

Function Documentation

◆ GetThreadDesktopWnd()

PWND FASTCALL GetThreadDesktopWnd ( VOID )

Definition at line 397 of file misc.c.

{
    PWND Wnd = GetThreadDesktopInfo()->spwnd;
    if (Wnd != NULL)
        Wnd = DesktopPtrToUser(Wnd);
    return Wnd;
}

Referenced by GetAncestor(), GetDesktopWindow(), IsChild(), and ValidateHwndOrDesk().

◆ GetUser32Handle()

PUSER_HANDLE_ENTRY FASTCALL GetUser32Handle ( HANDLE handle )

Definition at line 195 of file misc.c.

{
    INT Index;
    USHORT generation;
 
    if (!handle) return NULL;
 
    Index = (((UINT_PTR)handle & 0xffff) - FIRST_USER_HANDLE) >> 1;
 
    if (Index < 0 || Index >= gHandleTable->nb_handles)
        return NULL;
 
    if (!gHandleEntries[Index].type || !gHandleEntries[Index].ptr)
        return NULL;
 
    generation = (UINT_PTR)handle >> 16;
 
    if (generation == gHandleEntries[Index].generation || !generation || generation == 0xffff)
        return &gHandleEntries[Index];
 
    return NULL;
}

Referenced by ValidateCallProc(), ValidateHandle(), and ValidateHandleNoErr().

◆ GetUserObjectSecurity()

BOOL WINAPI GetUserObjectSecurity	(	IN HANDLE	hObject,
		IN PSECURITY_INFORMATION	pSecurityInfo,
		OUT PSECURITY_DESCRIPTOR	pSecurityDescriptor,
		IN DWORD	dwLength,
		OUT PDWORD	pdwLengthNeeded
	)

Definition at line 75 of file misc.c.

{
    NTSTATUS Status;
 
    Status = NtQuerySecurityObject(hObject,
                                   *pSecurityInfo,
                                   pSecurityDescriptor,
                                   dwLength,
                                   pdwLengthNeeded);
    if (!NT_SUCCESS(Status))
    {
        UserSetLastNTError(Status);
        return FALSE;
    }
 
    return TRUE;
}

◆ GetW32ThreadInfo()

PTHREADINFO GetW32ThreadInfo ( VOID )

Definition at line 36 of file misc.c.

{
    PTHREADINFO ti;
 
    ti = (PTHREADINFO)NtCurrentTeb()->Win32ThreadInfo;
    if (ti == NULL)
    {
        /* create the THREADINFO structure */
        NtUserGetThreadState(THREADSTATE_GETTHREADINFO);
        ti = (PTHREADINFO)NtCurrentTeb()->Win32ThreadInfo;
    }
 
    return ti;
}

Referenced by co_UserActivateKeyboardLayout(), co_UserCreateWindowEx(), DceAllocDCE(), DesktopPtrToUser(), GetThreadDesktopInfo(), GetWindowThreadProcessId(), IntAssociateInputContextEx(), IntBuildHwndList(), IntCallMessageProc(), IntCallWindowProcA(), IntCallWindowProcW(), IntCheckImeShowStatus(), IntCreateCurIconHandle(), IntCreateWindow(), IntGetImeHotKeyByKey(), IntImmProcessKey(), IntSendMessageToUI(), IntSendNCPaint(), NtUserCallHwndOpt(), NtUserCallNextHookEx(), NtUserCallNoParam(), NtUserCallOneParam(), NtUserDisableThreadIme(), NtUserMessageCall(), NtUserSetShellWindowEx(), NtUserSetThreadLayoutHandles(), RawInputThreadMain(), SendMessageA(), SendMessageW(), UserCreateMenu(), UserGetDCEx(), UserRegisterClass(), and UserUpdateInputContext().

◆ IsGUIThread()

BOOL WINAPI IsGUIThread ( BOOL bConvert )

Definition at line 145 of file misc.c.

{
  PTHREADINFO ti = (PTHREADINFO)NtCurrentTeb()->Win32ThreadInfo;
  if (ti == NULL)
  {
    if(bConvert)
    {
      NtUserGetThreadState(THREADSTATE_GETTHREADINFO);
      if ((PTHREADINFO)NtCurrentTeb()->Win32ThreadInfo) return TRUE;
      else
         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
    }
    return FALSE;
  }
  else
    return TRUE;
}

Referenced by do_InitialDesktop_child().

◆ MBToWCSEx()

DWORD WINAPI MBToWCSEx	(	WORD	CodePage,
		LPSTR	MBString,
		LONG	MBSize,
		LPWSTR *	UnicodeString,
		LONG	UnicodeSize,
		BOOL	Allocate
	)

Definition at line 457 of file misc.c.

{
    DWORD Size;
    if (MBSize == -1)
    {
        MBSize = strlen(MBString)+1;
    }
    if (UnicodeSize == -1)
    {
        if (!Allocate)
        {
            return 0;
        }
        UnicodeSize = MBSize;
    }
    if (Allocate)
    {
        LPWSTR SafeString = RtlAllocateHeap(GetProcessHeap(), 0, UnicodeSize);
        if (SafeString == NULL)
            return 0;
        *UnicodeString = SafeString;
    }
    UnicodeSize *= sizeof(WCHAR);
    if (CodePage == 0)
    {
        RtlMultiByteToUnicodeN(*UnicodeString,UnicodeSize,&Size,MBString,MBSize);
    }
    else
    {
        Size = MultiByteToWideChar(CodePage,0,MBString,MBSize,*UnicodeString,UnicodeSize);
    }
    return Size;
}

◆ SetUserObjectSecurity()

BOOL WINAPI SetUserObjectSecurity	(	IN HANDLE	hObject,
		IN PSECURITY_INFORMATION	pSecurityInfo,
		IN PSECURITY_DESCRIPTOR	pSecurityDescriptor
	)

Definition at line 120 of file misc.c.

{
    NTSTATUS Status;
 
    Status = NtSetSecurityObject(hObject,
                                 *pSecurityInfo,
                                 pSecurityDescriptor);
    if (!NT_SUCCESS(Status))
    {
        UserSetLastNTError(Status);
        return FALSE;
    }
 
    return TRUE;
}

◆ TestState()

BOOL FASTCALL TestState	(	PWND	pWnd,
		UINT	Flag
	)

Definition at line 177 of file misc.c.

{
    UINT bit;
    bit = 1 << LOWORD(Flag);
    switch(HIWORD(Flag))
    {
       case 0: 
          return (pWnd->state & bit); 
       case 1:
          return (pWnd->state2 & bit);
       case 2:
          return (pWnd->ExStyle2 & bit);
    }
    return FALSE;
}

Referenced by NtUserxClearWindowState(), and NtUserxSetWindowState().

◆ TestWindowProcess()

BOOL FASTCALL TestWindowProcess ( PWND Wnd )

Definition at line 166 of file misc.c.

{
   if (Wnd->head.pti == (PTHREADINFO)NtCurrentTeb()->Win32ThreadInfo)
      return TRUE;
   else
      return (NtUserQueryWindow(Wnd->head.h, QUERY_WINDOW_UNIQUE_PROCESS_ID) ==
              (DWORD_PTR)NtCurrentTeb()->ClientId.UniqueProcess );
}

Referenced by DIALOG_FindMsgDestination(), GetWindowTextA(), GetWindowTextLengthA(), GetWindowTextLengthW(), GetWindowTextW(), IntGetWindowLong(), IsDialogMessageW(), SetWindowTextA(), and SetWindowTextW().

◆ UserSetLastError()

VOID WINAPI UserSetLastError ( IN DWORD dwErrCode )

Definition at line 13 of file misc.c.

{
    /*
     * Equivalent of SetLastError in kernel32, but without breaking
     * into the debugger nor checking whether the last old error is
     * the same as the one we are going to set.
     */
    NtCurrentTeb()->LastErrorValue = dwErrCode;
}

Referenced by EndTask(), ExitWindowsWorker(), GetWindow(), and UserSetLastNTError().

◆ UserSetLastNTError()

VOID WINAPI UserSetLastNTError ( IN NTSTATUS Status )

Definition at line 25 of file misc.c.

{
    /*
     * Equivalent of BaseSetLastNTError in kernel32, but using
     * UserSetLastError: convert from NT to Win32, then set.
     */
    UserSetLastError(RtlNtStatusToDosError(Status));
}

Referenced by EndTask(), ExitWindowsWorker(), GetThreadDesktop(), GetUserObjectSecurity(), RegisterLogonProcess(), RegisterServicesProcess(), and SetUserObjectSecurity().

◆ ValidateCallProc()

PCALLPROCDATA FASTCALL ValidateCallProc ( HANDLE hCallProc )

Definition at line 339 of file misc.c.

{
  PUSER_HANDLE_ENTRY pEntry;
 
  PCALLPROCDATA CallProc = ValidateHandle(hCallProc, TYPE_CALLPROC);
 
  pEntry = GetUser32Handle(hCallProc);
 
  if (CallProc != NULL && pEntry->ppi == g_ppi)
     return CallProc;
 
  return NULL;
}

Referenced by CallWindowProcA(), and CallWindowProcW().

◆ ValidateHandle()

PVOID FASTCALL ValidateHandle	(	HANDLE	handle,
		UINT	uType
	)

Definition at line 252 of file misc.c.

{
  PVOID ret;
  PUSER_HANDLE_ENTRY pEntry;
 
  ASSERT(uType < TYPE_CTYPES);
 
  pEntry = GetUser32Handle(handle);
 
  if (pEntry && uType == 0)
      uType = pEntry->type;
 
// Must have an entry and must be the same type!
  if ( (!pEntry) ||
        (pEntry->type != uType) ||
        !pEntry->ptr ||
        (pEntry->flags & HANDLEENTRY_DESTROY) || (pEntry->flags & HANDLEENTRY_INDESTROY) )
  {
     switch ( uType )
     {  // Test (with wine too) confirms these results!
        case TYPE_WINDOW:
          SetLastError(ERROR_INVALID_WINDOW_HANDLE);
          break;
        case TYPE_MENU:
          SetLastError(ERROR_INVALID_MENU_HANDLE);
          break;
        case TYPE_CURSOR:
          SetLastError(ERROR_INVALID_CURSOR_HANDLE);
          break;
        case TYPE_SETWINDOWPOS:
          SetLastError(ERROR_INVALID_DWP_HANDLE);
          break;
        case TYPE_HOOK:
          SetLastError(ERROR_INVALID_HOOK_HANDLE);
          break;
        case TYPE_ACCELTABLE:
          SetLastError(ERROR_INVALID_ACCEL_HANDLE);
          break;
        default:
          SetLastError(ERROR_INVALID_HANDLE);
          break;
    }
    return NULL;
  }
 
  if (g_ObjectHeapTypeShared[uType])
    ret = SharedPtrToUser(pEntry->ptr);
  else
    ret = DesktopPtrToUser(pEntry->ptr);
 
  return ret;
}

Referenced by ValidateCallProc(), and ValidateHwnd().

◆ ValidateHandleNoErr()

PVOID FASTCALL ValidateHandleNoErr	(	HANDLE	handle,
		UINT	uType
	)

Definition at line 310 of file misc.c.

{
  PVOID ret;
  PUSER_HANDLE_ENTRY pEntry;
 
  ASSERT(uType < TYPE_CTYPES);
 
  pEntry = GetUser32Handle(handle);
 
  if (pEntry && uType == 0)
      uType = pEntry->type;
 
// Must have an entry and must be the same type!
  if ( (!pEntry) || (pEntry->type != uType) || !pEntry->ptr )
    return NULL;
 
  if (g_ObjectHeapTypeShared[uType])
    ret = SharedPtrToUser(pEntry->ptr);
  else
    ret = DesktopPtrToUser(pEntry->ptr);
 
  return ret;
}

Referenced by ImmCallImeConsoleIME(), MENU_GetMenu(), and ValidateHwndNoErr().

◆ ValidateHwnd()

PWND FASTCALL ValidateHwnd ( HWND hwnd )

Definition at line 359 of file misc.c.

{
    PCLIENTINFO ClientInfo = GetWin32ClientInfo();
    ASSERT(ClientInfo != NULL);
 
    /* See if the window is cached */
    if (hwnd && hwnd == ClientInfo->CallbackWnd.hWnd)
        return ClientInfo->CallbackWnd.pWnd;
 
    return ValidateHandle((HANDLE)hwnd, TYPE_WINDOW);
}

◆ ValidateHwndNoErr()

PWND FASTCALL ValidateHwndNoErr ( HWND hwnd )

Definition at line 376 of file misc.c.

{
    PWND Wnd;
    PCLIENTINFO ClientInfo = GetWin32ClientInfo();
    ASSERT(ClientInfo != NULL);
 
    /* See if the window is cached */
    if (hwnd == ClientInfo->CallbackWnd.hWnd)
        return ClientInfo->CallbackWnd.pWnd;
 
    Wnd = ValidateHandleNoErr((HANDLE)hwnd, TYPE_WINDOW);
    if (Wnd != NULL)
    {
        return Wnd;
    }
 
    return NULL;
}

◆ ValidateHwndOrDesk()

PWND FASTCALL ValidateHwndOrDesk ( HWND hwnd )

Definition at line 410 of file misc.c.

{
    if (hwnd == HWND_DESKTOP)
        return GetThreadDesktopWnd();
 
    return ValidateHwnd(hwnd);
}

◆ WCSToMBEx()

DWORD WINAPI WCSToMBEx	(	WORD	CodePage,
		LPWSTR	UnicodeString,
		LONG	UnicodeSize,
		LPSTR *	MBString,
		LONG	MBSize,
		BOOL	Allocate
	)

Definition at line 421 of file misc.c.

{
    DWORD Size;
    if (UnicodeSize == -1)
    {
        UnicodeSize = wcslen(UnicodeString)+1;
    }
    if (MBSize == -1)
    {
        if (!Allocate)
        {
            return 0;
        }
        MBSize = UnicodeSize * 2;
    }
    if (Allocate)
    {
        LPSTR SafeString = RtlAllocateHeap(GetProcessHeap(), 0, MBSize);
        if (SafeString == NULL)
            return 0;
        *MBString = SafeString;
    }
    if (CodePage == 0)
    {
        RtlUnicodeToMultiByteN(*MBString,MBSize,&Size,UnicodeString,UnicodeSize);
    }
    else
    {
        WideCharToMultiByte(CodePage,0,UnicodeString,UnicodeSize,*MBString,MBSize,0,0);
    }
    return UnicodeSize;
}

Variable Documentation

◆ g_ObjectHeapTypeShared

const BOOL g_ObjectHeapTypeShared[TYPE_CTYPES]

static

Initial value:

=
{
    FALSE, 
    FALSE, 
    FALSE, 
    TRUE,  
    TRUE,  
    FALSE, 
    TRUE,  
    FALSE, 
    TRUE,  
    FALSE, 
    FALSE, 
    FALSE, 
    TRUE,  
    TRUE,  
    TRUE,  
    TRUE,  
    TRUE,  
    FALSE, 
    FALSE, 
    FALSE, 
    FALSE, 
    FALSE, 
}

Definition at line 221 of file misc.c.

Referenced by ValidateHandle(), and ValidateHandleNoErr().

Functions

Variables