usrapihk.c File Reference

#include <user32.h>

Include dependency graph for usrapihk.c:

Go to the source code of this file.

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (user32)
BOOL WINAPI	RealAdjustWindowRectEx (LPRECT, DWORD, BOOL, DWORD)
LRESULT WINAPI	RealDefWindowProcA (HWND, UINT, WPARAM, LPARAM)
LRESULT WINAPI	RealDefWindowProcW (HWND, UINT, WPARAM, LPARAM)
BOOL WINAPI	RealDrawFrameControl (HDC, LPRECT, UINT, UINT)
BOOL WINAPI	RealGetScrollInfo (HWND, INT, LPSCROLLINFO)
int WINAPI	RealGetSystemMetrics (int)
BOOL WINAPI	RealMDIRedrawFrame (HWND, DWORD)
INT WINAPI	RealSetScrollInfo (HWND, int, LPCSCROLLINFO, BOOL)
BOOL WINAPI	RealSystemParametersInfoA (UINT, UINT, PVOID, UINT)
BOOL WINAPI	RealSystemParametersInfoW (UINT, UINT, PVOID, UINT)
DWORD WINAPI	GetRealWindowOwner (HWND)
BOOL WINAPI	RealUserDrawCaption (HWND hWnd, HDC hDC, LPCRECT lpRc, UINT uFlags)
LRESULT WINAPI	DefaultOWP (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, ULONG_PTR lResult, PDWORD pData)
BOOL FASTCALL	IsMsgOverride (UINT Msg, PUAHOWP puaowpOverride)
VOID FASTCALL	CopyMsgMask (PUAHOWP Dest, PUAHOWP Src, PVOID hkmsg, DWORD Size)
BOOL FASTCALL	IsInsideUserApiHook (VOID)
BOOL FASTCALL	BeginIfHookedUserApiHook (VOID)
BOOL WINAPI	ForceResetUserApiHook (HINSTANCE hInstance)
VOID FASTCALL	ResetUserApiHook (PUSERAPIHOOK puah)
BOOL FASTCALL	EndUserApiHook (VOID)
BOOL WINAPI	ClearUserApiHook (HINSTANCE hInstance)
BOOL WINAPI	InitUserApiHook (HINSTANCE hInstance, USERAPIHOOKPROC pfn)
BOOL WINAPI	MDIRedrawFrame (HWND hWnd, DWORD flags)
BOOL WINAPI	RegisterUserApiHook (PUSERAPIHOOKINFO puah)
BOOL WINAPI	UnregisterUserApiHook (VOID)

Variables
DWORD	gcLoadUserApiHook = 0
LONG	gcCallUserApiHook = 0
DWORD	gfUserApiHook = 0
HINSTANCE	ghmodUserApiHook = NULL
USERAPIHOOKPROC	gpfnInitUserApi
RTL_CRITICAL_SECTION	gcsUserApiHook
BYTE	grgbDwpLiteHookMsg [128]
BYTE	grgbWndLiteHookMsg [128]
BYTE	grgbDlgLiteHookMsg [128]
USERAPIHOOK	guah

Function Documentation

BeginIfHookedUserApiHook()

BOOL FASTCALL BeginIfHookedUserApiHook

(

VOID

)

Definition at line 106 of file usrapihk.c.

{
  InterlockedIncrement(&gcCallUserApiHook);
  if (IsInsideUserApiHook()) return TRUE;

  InterlockedDecrement(&gcCallUserApiHook);
  return FALSE;
}

Referenced by AdjustWindowRectEx(), DefWindowProcA(), DefWindowProcW(), DrawCaption(), DrawFrameControl(), EnableScrollBar(), GetScrollInfo(), GetSystemMetrics(), IntCallWindowProcA(), IntCallWindowProcW(), MDIRedrawFrame(), SetScrollInfo(), SetWindowRgn(), SystemParametersInfoA(), and SystemParametersInfoW().

ClearUserApiHook()

BOOL WINAPI ClearUserApiHook

(

HINSTANCE

hInstance

)

Definition at line 193 of file usrapihk.c.

{
  HMODULE hModule;
  USERAPIHOOKPROC pfn = NULL, pfn1 = NULL;

  RtlEnterCriticalSection(&gcsUserApiHook);
  hModule = ghmodUserApiHook;
  if ( ghmodUserApiHook == hInstance )
  {
     pfn1 = gpfnInitUserApi;
     if ( --gcLoadUserApiHook == 0 )
     {
        gfUserApiHook = 0;
        ResetUserApiHook(&guah);
        if ( gcCallUserApiHook )
        {
           hInstance = NULL;
           pfn1 = NULL;
           pfn = gpfnInitUserApi;
           gcLoadUserApiHook = 1;
        }
        else
        {
           hInstance = hModule;
           ghmodUserApiHook = NULL;
           gpfnInitUserApi = NULL;
        }
     }
  }
  RtlLeaveCriticalSection(&gcsUserApiHook);

  if ( pfn )
  {
     pfn(uahShutdown, 0); // Shutdown.

     RtlEnterCriticalSection(&gcsUserApiHook);
     pfn1 = gpfnInitUserApi;

     if ( --gcLoadUserApiHook == 0 )
     {
        if ( gcCallUserApiHook )
        {
           hInstance = NULL;
           pfn1 = NULL;
        }
        else
        {
           hInstance = ghmodUserApiHook;
           ghmodUserApiHook = NULL;
           gpfnInitUserApi = NULL;
        }
     }
     RtlLeaveCriticalSection(&gcsUserApiHook);
  }

  if ( pfn1 ) pfn1(uahStop, 0);

  return hInstance != 0;
}

Referenced by ClientLoadLibrary().

CopyMsgMask()

VOID FASTCALL CopyMsgMask	(	PUAHOWP	Dest,
		PUAHOWP	Src,
		PVOID	hkmsg,
		DWORD	Size
	)

Definition at line 76 of file usrapihk.c.

{
  DWORD nSize;

  if ( Src && Src->Size > 0 )
  {
     Dest->MsgBitArray = hkmsg;
     nSize = Src->Size;
     if ( Size < nSize) nSize = Size;
     Dest->Size = nSize;
     RtlCopyMemory(Dest->MsgBitArray, Src->MsgBitArray, nSize);
     return;
  }

  Dest->MsgBitArray = NULL;
  Dest->Size = 0;
  return;
}

Referenced by InitUserApiHook().

DefaultOWP()

LRESULT WINAPI DefaultOWP	(	HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam,
		ULONG_PTR	lResult,
		PDWORD	pData
	)

Definition at line 52 of file usrapihk.c.

{
  return 0;
}

Referenced by ResetUserApiHook().

EndUserApiHook()

BOOL FASTCALL EndUserApiHook

(

VOID

)

Definition at line 164 of file usrapihk.c.

{
  HMODULE hModule;
  USERAPIHOOKPROC pfn;  
  BOOL Ret = FALSE;

  if ( !InterlockedDecrement(&gcCallUserApiHook) )
  {
     if ( !gcLoadUserApiHook )
     {
        RtlEnterCriticalSection(&gcsUserApiHook);

        pfn = gpfnInitUserApi;
        hModule = ghmodUserApiHook;
        ghmodUserApiHook = NULL;
        gpfnInitUserApi = NULL;

        RtlLeaveCriticalSection(&gcsUserApiHook);

        if ( pfn ) Ret = pfn(uahStop, 0);

        if ( hModule ) Ret = FreeLibrary(hModule);
     }
  }
  return Ret;
}

Referenced by AdjustWindowRectEx(), DefWindowProcA(), DefWindowProcW(), DrawCaption(), DrawFrameControl(), EnableScrollBar(), GetScrollInfo(), GetSystemMetrics(), IntCallWindowProcA(), IntCallWindowProcW(), MDIRedrawFrame(), SetScrollInfo(), SetWindowRgn(), SystemParametersInfoA(), and SystemParametersInfoW().

ForceResetUserApiHook()

BOOL WINAPI ForceResetUserApiHook

(

HINSTANCE

hInstance

)

Definition at line 117 of file usrapihk.c.

{
  if ( ghmodUserApiHook == hInstance &&
       RtlIsThreadWithinLoaderCallout() )
  {
     ResetUserApiHook(&guah);
     gpfnInitUserApi = NULL;
     return TRUE;
  }
  return FALSE;
}

Referenced by InitUserApiHook(), and ResetUserApiHook().

GetRealWindowOwner()

DWORD WINAPI GetRealWindowOwner

(

HWND

)

Definition at line 1915 of file window.c.

{
    return NtUserQueryWindow(hwnd, QUERY_WINDOW_REAL_ID);
}

Referenced by ResetUserApiHook().

InitUserApiHook()

BOOL WINAPI InitUserApiHook	(	HINSTANCE	hInstance,
		USERAPIHOOKPROC	pfn
	)

Definition at line 255 of file usrapihk.c.

{
  USERAPIHOOK uah;

  ResetUserApiHook(&uah);

  RtlEnterCriticalSection(&gcsUserApiHook);

  if (!pfn(uahLoadInit,&uah) ||  // Swap data, User32 to and Uxtheme from!
       uah.ForceResetUserApiHook != ForceResetUserApiHook ||
       uah.size <= 0 )
  {
     RtlLeaveCriticalSection(&gcsUserApiHook);
     return FALSE;
  }

  if ( ghmodUserApiHook )
  {
     if ( ghmodUserApiHook != hInstance )
     {
        RtlLeaveCriticalSection(&gcsUserApiHook);
        pfn(uahStop, 0);
        return FALSE;
     }
     gcLoadUserApiHook++;
  }
  else
  {
     ghmodUserApiHook = hInstance;
     // Do not over write GetRealWindowOwner.
     RtlCopyMemory(&guah, &uah, sizeof(USERAPIHOOK) - sizeof(LONG));
     gpfnInitUserApi = pfn;
     gcLoadUserApiHook = 1;
     gfUserApiHook = 1;
     // Copy Message Masks
     CopyMsgMask(&guah.DefWndProcArray,
                 &uah.DefWndProcArray,
                 &grgbDwpLiteHookMsg,
                  sizeof(grgbDwpLiteHookMsg));

     CopyMsgMask(&guah.WndProcArray,
                 &uah.WndProcArray,
                 &grgbWndLiteHookMsg,
                  sizeof(grgbWndLiteHookMsg));

     CopyMsgMask(&guah.DlgProcArray,
                 &uah.DlgProcArray,
                 &grgbDlgLiteHookMsg,
                  sizeof(grgbDlgLiteHookMsg));
  }
  RtlLeaveCriticalSection(&gcsUserApiHook);
  return TRUE;
}

Referenced by ClientLoadLibrary().

IsInsideUserApiHook()

BOOL FASTCALL IsInsideUserApiHook

(

VOID

)

Definition at line 98 of file usrapihk.c.

{
  if ( ghmodUserApiHook && gfUserApiHook ) return TRUE;
  return FALSE;
}

Referenced by BeginIfHookedUserApiHook(), and LoadUserApiHook().

IsMsgOverride()

BOOL FASTCALL IsMsgOverride	(	UINT	Msg,
		PUAHOWP	puaowpOverride
	)

Definition at line 63 of file usrapihk.c.

{
  UINT nMsg = Msg / 8; // Group Indexed, (Msg 1024) / 8 = (0 -> 127) bytes Max

  if ( puaowpOverride && nMsg < puaowpOverride->Size )
  {
     return (puaowpOverride->MsgBitArray[nMsg] & (1 << (Msg & WM_SETFOCUS)));
  }
  return FALSE;
}

Referenced by DefWindowProcA(), DefWindowProcW(), IntCallWindowProcA(), and IntCallWindowProcW().

MDIRedrawFrame()

BOOL WINAPI MDIRedrawFrame	(	HWND	hWnd,
		DWORD	flags
	)

Definition at line 318 of file usrapihk.c.

{
   BOOL Hook, Ret = FALSE;

   LoadUserApiHook();

   Hook = BeginIfHookedUserApiHook();

   /* Bypass SEH and go direct. */
   if (!Hook) return RealMDIRedrawFrame(hWnd, flags);

   _SEH2_TRY
   {
      Ret = guah.MDIRedrawFrame(hWnd, flags);
   }
   _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
   {
       ERR("Got exception in hooked MDIRedrawFrame!\n");
   }
   _SEH2_END;

   EndUserApiHook();

   return Ret;
}

RealAdjustWindowRectEx()

BOOL WINAPI RealAdjustWindowRectEx	(	LPRECT	,
		DWORD	,
		BOOL	,
		DWORD
	)

Definition at line 90 of file nonclient.c.

{
   SIZE BorderSize;

   if (bMenu)
   {
      lpRect->top -= GetSystemMetrics(SM_CYMENU);
   }
   if ((dwStyle & WS_CAPTION) == WS_CAPTION)
   {
      if (dwExStyle & WS_EX_TOOLWINDOW)
         lpRect->top -= GetSystemMetrics(SM_CYSMCAPTION);
      else
         lpRect->top -= GetSystemMetrics(SM_CYCAPTION);
   }
   UserGetWindowBorders(dwStyle, dwExStyle, &BorderSize, TRUE);
   InflateRect(
      lpRect,
      BorderSize.cx,
      BorderSize.cy);

   return TRUE;
}

Referenced by AdjustWindowRectEx(), and ResetUserApiHook().

RealDefWindowProcA()

LRESULT WINAPI RealDefWindowProcA	(	HWND	,
		UINT	,
		WPARAM	,
		LPARAM
	)

Definition at line 809 of file defwnd.c.

{
    LRESULT Result = 0;
    PWND Wnd;

    Wnd = ValidateHwnd(hWnd);

    if ( !Wnd &&
         Msg != WM_CTLCOLORMSGBOX &&
         Msg != WM_CTLCOLORBTN    &&
         Msg != WM_CTLCOLORDLG    &&
         Msg != WM_CTLCOLORSTATIC )
       return 0;

    SPY_EnterMessage(SPY_DEFWNDPROC, hWnd, Msg, wParam, lParam);
    switch (Msg)
    {
        case WM_NCCREATE:
        {
            if ( Wnd &&
                 Wnd->style & (WS_HSCROLL | WS_VSCROLL) )
            {
               if (!Wnd->pSBInfo)
               {
                  SCROLLINFO si = {sizeof si, SIF_ALL, 0, 100, 0, 0, 0};
                  SetScrollInfo( hWnd, SB_HORZ, &si, FALSE );
                  SetScrollInfo( hWnd, SB_VERT, &si, FALSE );
               }
            }

            if (lParam)
            {
                LPCREATESTRUCTA cs = (LPCREATESTRUCTA)lParam;
                /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
                 * may have child window IDs instead of window name */
                if (HIWORD(cs->lpszName))
                {
                    DefSetText(hWnd, (PCWSTR)cs->lpszName, TRUE);
                }
                Result = 1;
            }
            break;
        }

        case WM_GETTEXTLENGTH:
        {
            PWSTR buf;
            ULONG len;

            if (Wnd != NULL && Wnd->strName.Length != 0)
            {
                buf = DesktopPtrToUser(Wnd->strName.Buffer);
                if (buf != NULL &&
                    NT_SUCCESS(RtlUnicodeToMultiByteSize(&len,
                                                         buf,
                                                         Wnd->strName.Length)))
                {
                    Result = (LRESULT) len;
                }
            }
            else Result = 0L;

            break;
        }

        case WM_GETTEXT:
        {
            PWSTR buf = NULL;
            PSTR outbuf = (PSTR)lParam;
            SIZE_T copy;

            if (Wnd != NULL && wParam != 0)
            {
                if (Wnd->strName.Buffer != NULL)
                    buf = DesktopPtrToUser(Wnd->strName.Buffer);
                else
                    outbuf[0] = L'\0';

                if (buf != NULL)
                {
                    if (Wnd->strName.Length != 0)
                    {
                        copy = min(Wnd->strName.Length / sizeof(WCHAR), wParam - 1);
                        Result = WideCharToMultiByte(CP_ACP,
                                                     0,
                                                     buf,
                                                     copy,
                                                     outbuf,
                                                     wParam,
                                                     NULL,
                                                     NULL);
                        outbuf[Result] = '\0';
                    }
                    else
                        outbuf[0] = '\0';
                }
            }
            break;
        }

        case WM_SETTEXT:
        {
            DefSetText(hWnd, (PCWSTR)lParam, TRUE);

            if ((GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CAPTION) == WS_CAPTION)
            {
                UserPaintCaption(Wnd, DC_TEXT);
                IntNotifyWinEvent(EVENT_OBJECT_NAMECHANGE, hWnd, OBJID_WINDOW, CHILDID_SELF, 0);
            }
            Result = 1;
            break;
        }

        case WM_IME_KEYDOWN:
        {
            Result = PostMessageA(hWnd, WM_KEYDOWN, wParam, lParam);
            break;
        }

        case WM_IME_KEYUP:
        {
            Result = PostMessageA(hWnd, WM_KEYUP, wParam, lParam);
            break;
        }

        case WM_IME_CHAR:
        {
            if (HIBYTE(wParam))
                PostMessageA(hWnd, WM_CHAR, HIBYTE(wParam), lParam);
            PostMessageA(hWnd, WM_CHAR, LOBYTE(wParam), lParam);
            break;
        }

        case WM_IME_COMPOSITION:
        if (lParam & GCS_RESULTSTR)
        {
            LONG size, i;
            unsigned char lead = 0;
            char *buf = NULL;
            HIMC himc = ImmGetContext( hWnd );

            if (himc)
            {
                if ((size = ImmGetCompositionStringA( himc, GCS_RESULTSTR, NULL, 0 )))
                {
                    if (!(buf = HeapAlloc( GetProcessHeap(), 0, size ))) size = 0;
                    else size = ImmGetCompositionStringA( himc, GCS_RESULTSTR, buf, size );
                }
                ImmReleaseContext( hWnd, himc );

                for (i = 0; i < size; i++)
                {
                    unsigned char c = buf[i];
                    if (!lead)
                    {
                        if (IsDBCSLeadByte( c ))
                            lead = c;
                        else
                            SendMessageA( hWnd, WM_IME_CHAR, c, 1 );
                    }
                    else
                    {
                        SendMessageA( hWnd, WM_IME_CHAR, MAKEWORD(c, lead), 1 );
                        lead = 0;
                    }
                }
                HeapFree( GetProcessHeap(), 0, buf );
            }
        }
        /* fall through */
        case WM_IME_STARTCOMPOSITION:
        case WM_IME_ENDCOMPOSITION:
        case WM_IME_SELECT:
        case WM_IME_NOTIFY:
        case WM_IME_CONTROL:
        {
            HWND hwndIME;

            hwndIME = ImmGetDefaultIMEWnd(hWnd);
            if (hwndIME)
                Result = SendMessageA(hwndIME, Msg, wParam, lParam);
            break;
        }

        case WM_IME_SETCONTEXT:
        {
            HWND hwndIME;

            hwndIME = ImmGetDefaultIMEWnd(hWnd);
            if (hwndIME)
                Result = ImmIsUIMessageA(hwndIME, Msg, wParam, lParam);
            break;
        }

        /* fall through */
        default:
            Result = User32DefWindowProc(hWnd, Msg, wParam, lParam, FALSE);
    }

    SPY_ExitMessage(SPY_RESULT_DEFWND, hWnd, Msg, Result, wParam, lParam);
    return Result;
}

Referenced by DefWindowProcA(), and ResetUserApiHook().

RealDefWindowProcW()

LRESULT WINAPI RealDefWindowProcW	(	HWND	,
		UINT	,
		WPARAM	,
		LPARAM
	)

Definition at line 1017 of file defwnd.c.

{
    LRESULT Result = 0;
    PWND Wnd;

    Wnd = ValidateHwnd(hWnd);

    if ( !Wnd &&
         Msg != WM_CTLCOLORMSGBOX &&
         Msg != WM_CTLCOLORBTN    &&
         Msg != WM_CTLCOLORDLG    &&
         Msg != WM_CTLCOLORSTATIC )
       return 0;

    SPY_EnterMessage(SPY_DEFWNDPROC, hWnd, Msg, wParam, lParam);
    switch (Msg)
    {
        case WM_NCCREATE:
        {
            if ( Wnd &&
                 Wnd->style & (WS_HSCROLL | WS_VSCROLL) )
            {
               if (!Wnd->pSBInfo)
               {
                  SCROLLINFO si = {sizeof si, SIF_ALL, 0, 100, 0, 0, 0};
                  if (Wnd->style & WS_HSCROLL)
                     SetScrollInfo( hWnd, SB_HORZ, &si, FALSE );
                  if (Wnd->style & WS_VSCROLL)
                     SetScrollInfo( hWnd, SB_VERT, &si, FALSE );
               }
            }

            if (lParam)
            {
                LPCREATESTRUCTW cs = (LPCREATESTRUCTW)lParam;
                /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
                 * may have child window IDs instead of window name */
                if (HIWORD(cs->lpszName))
                {
                    DefSetText(hWnd, cs->lpszName, FALSE);
                }
                Result = 1;
            }
            break;
        }

        case WM_GETTEXTLENGTH:
        {
            PWSTR buf;
            ULONG len;

            if (Wnd != NULL && Wnd->strName.Length != 0)
            {
                buf = DesktopPtrToUser(Wnd->strName.Buffer);
                if (buf != NULL &&
                    NT_SUCCESS(RtlUnicodeToMultiByteSize(&len,
                                                         buf,
                                                         Wnd->strName.Length)))
                {
                    Result = (LRESULT) (Wnd->strName.Length / sizeof(WCHAR));
                }
            }
            else Result = 0L;

            break;
        }

        case WM_GETTEXT:
        {
            PWSTR buf = NULL;
            PWSTR outbuf = (PWSTR)lParam;

            if (Wnd != NULL && wParam != 0)
            {
                if (Wnd->strName.Buffer != NULL)
                    buf = DesktopPtrToUser(Wnd->strName.Buffer);
                else
                    outbuf[0] = L'\0';

                if (buf != NULL)
                {
                    if (Wnd->strName.Length != 0)
                    {
                        Result = min(Wnd->strName.Length / sizeof(WCHAR), wParam - 1);
                        RtlCopyMemory(outbuf,
                                      buf,
                                      Result * sizeof(WCHAR));
                        outbuf[Result] = L'\0';
                    }
                    else
                        outbuf[0] = L'\0';
                }
            }
            break;
        }

        case WM_SETTEXT:
        {
            DefSetText(hWnd, (PCWSTR)lParam, FALSE);

            if ((GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CAPTION) == WS_CAPTION)
                UserPaintCaption(Wnd, DC_TEXT);
            Result = 1;
            break;
        }

        case WM_IME_CHAR:
        {
            PostMessageW(hWnd, WM_CHAR, wParam, lParam);
            Result = 0;
            break;
        }

        case WM_IME_KEYDOWN:
        {
            Result = PostMessageW(hWnd, WM_KEYDOWN, wParam, lParam);
            break;
        }

        case WM_IME_KEYUP:
        {
            Result = PostMessageW(hWnd, WM_KEYUP, wParam, lParam);
            break;
        }

        case WM_IME_COMPOSITION:
        if (lParam & GCS_RESULTSTR)
        {
            LONG size, i;
            WCHAR *buf = NULL;
            HIMC himc = ImmGetContext( hWnd );

            if (himc)
            {
                if ((size = ImmGetCompositionStringW( himc, GCS_RESULTSTR, NULL, 0 )))
                {
                    if (!(buf = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) ))) size = 0;
                    else size = ImmGetCompositionStringW( himc, GCS_RESULTSTR, buf, size * sizeof(WCHAR) );
                }
                ImmReleaseContext( hWnd, himc );

                for (i = 0; i < size / sizeof(WCHAR); i++)
                    SendMessageW( hWnd, WM_IME_CHAR, buf[i], 1 );
                HeapFree( GetProcessHeap(), 0, buf );
            }
        }
        /* fall through */
        case WM_IME_STARTCOMPOSITION:
        case WM_IME_ENDCOMPOSITION:
        case WM_IME_SELECT:
        case WM_IME_NOTIFY:
        case WM_IME_CONTROL:
        {
            HWND hwndIME;

            hwndIME = ImmGetDefaultIMEWnd(hWnd);
            if (hwndIME)
                Result = SendMessageW(hwndIME, Msg, wParam, lParam);
            break;
        }

        case WM_IME_SETCONTEXT:
        {
            HWND hwndIME;

            hwndIME = ImmGetDefaultIMEWnd(hWnd);
            if (hwndIME)
                Result = ImmIsUIMessageW(hwndIME, Msg, wParam, lParam);
            break;
        }

        default:
            Result = User32DefWindowProc(hWnd, Msg, wParam, lParam, TRUE);
    }
    SPY_ExitMessage(SPY_RESULT_DEFWND, hWnd, Msg, Result, wParam, lParam);

    return Result;
}

Referenced by DefWindowProcW(), and ResetUserApiHook().

RealDrawFrameControl()

BOOL WINAPI RealDrawFrameControl	(	HDC	,
		LPRECT	,
		UINT	,
		UINT
	)

Definition at line 1419 of file draw.c.

{
    if (GetMapMode(hDC) != MM_TEXT)
        return FALSE;

    switch(uType)
    {
        case DFC_BUTTON:
            return UITOOLS95_DrawFrameButton(hDC, rc, uState);
        case DFC_CAPTION:
            return UITOOLS95_DrawFrameCaption(hDC, rc, uState);
        case DFC_MENU:
            return UITOOLS95_DrawFrameMenu(hDC, rc, uState);
#if 0
        case DFC_POPUPMENU:
            UNIMPLEMENTED;
            break;
#endif
        case DFC_SCROLL:
            return UITOOLS95_DrawFrameScroll(hDC, rc, uState);
    }
    return FALSE;
}

Referenced by DrawFrameControl(), and ResetUserApiHook().

RealGetScrollInfo()

BOOL WINAPI RealGetScrollInfo	(	HWND	,
		INT	,
		LPSCROLLINFO
	)

Definition at line 1513 of file scrollbar.c.

{
  PWND pWnd;
  PSBDATA pSBData;

  if (SB_CTL == SBType)
  {
     return SendMessageW(Wnd, SBM_GETSCROLLINFO, 0, (LPARAM) Info);
  }

  pWnd = ValidateHwnd(Wnd);
  if (!pWnd) return FALSE;

  if (SBType < SB_HORZ || SBType > SB_VERT)
  {
     SetLastError(ERROR_INVALID_PARAMETER);
     return FALSE;
  }
  if (!pWnd->pSBInfo)
  {
     SetLastError(ERROR_NO_SCROLLBARS);
     return FALSE;
  }
  pSBData = IntGetSBData(pWnd, SBType);
  return NtUserSBGetParms(Wnd, SBType, pSBData, Info);
}

Referenced by GetScrollInfo(), and ResetUserApiHook().

RealGetSystemMetrics()

int WINAPI RealGetSystemMetrics

(

int

)

Definition at line 128 of file desktop.c.

{
  //FIXME("Global Server Data -> %x\n",gpsi);
  if (nIndex < 0 || nIndex >= SM_CMETRICS) return 0;
  return gpsi->aiSysMet[nIndex];
}

Referenced by GetSystemMetrics(), and ResetUserApiHook().

RealMDIRedrawFrame()

BOOL WINAPI RealMDIRedrawFrame	(	HWND	hWnd,
		DWORD	flags
	)

Definition at line 311 of file usrapihk.c.

{
  return NtUserxMDIRedrawFrame(hWnd);
}

Referenced by MDIRedrawFrame(), and ResetUserApiHook().

RealSetScrollInfo()

INT WINAPI RealSetScrollInfo	(	HWND	,
		int	,
		LPCSCROLLINFO	,
		BOOL
	)

Definition at line 1666 of file scrollbar.c.

{
  if (SB_CTL == SBType)
    {
      return SendMessageW(Wnd, SBM_SETSCROLLINFO, (WPARAM) bRedraw, (LPARAM) Info);
    }
  else
    {
      return NtUserSetScrollInfo(Wnd, SBType, Info, bRedraw);
    }
}

Referenced by ResetUserApiHook(), SetScrollInfo(), and SetScrollPos().

RealSystemParametersInfoA()

BOOL WINAPI RealSystemParametersInfoA	(	UINT	,
		UINT	,
		PVOID	,
		UINT
	)

Definition at line 180 of file desktop.c.

{
  switch (uiAction)
    {

      case SPI_GETNONCLIENTMETRICS:
        {
           LPNONCLIENTMETRICSA pnclma = (LPNONCLIENTMETRICSA)pvParam;
           NONCLIENTMETRICSW nclmw;
           if(pnclma->cbSize != sizeof(NONCLIENTMETRICSA))
           {
               SetLastError(ERROR_INVALID_PARAMETER);
               return FALSE;
           }
           nclmw.cbSize = sizeof(NONCLIENTMETRICSW);

           if (!SystemParametersInfoW(uiAction, sizeof(NONCLIENTMETRICSW),
                                      &nclmw, fWinIni))
             return FALSE;

           pnclma->iBorderWidth = nclmw.iBorderWidth;
           pnclma->iScrollWidth = nclmw.iScrollWidth;
           pnclma->iScrollHeight = nclmw.iScrollHeight;
           pnclma->iCaptionWidth = nclmw.iCaptionWidth;
           pnclma->iCaptionHeight = nclmw.iCaptionHeight;
           pnclma->iSmCaptionWidth = nclmw.iSmCaptionWidth;
           pnclma->iSmCaptionHeight = nclmw.iSmCaptionHeight;
           pnclma->iMenuWidth = nclmw.iMenuWidth;
           pnclma->iMenuHeight = nclmw.iMenuHeight;
           LogFontW2A(&(pnclma->lfCaptionFont), &(nclmw.lfCaptionFont));
           LogFontW2A(&(pnclma->lfSmCaptionFont), &(nclmw.lfSmCaptionFont));
           LogFontW2A(&(pnclma->lfMenuFont), &(nclmw.lfMenuFont));
           LogFontW2A(&(pnclma->lfStatusFont), &(nclmw.lfStatusFont));
           LogFontW2A(&(pnclma->lfMessageFont), &(nclmw.lfMessageFont));
           return TRUE;
        }
      case SPI_SETNONCLIENTMETRICS:
        {
           LPNONCLIENTMETRICSA pnclma = (LPNONCLIENTMETRICSA)pvParam;
           NONCLIENTMETRICSW nclmw;
           if(pnclma->cbSize != sizeof(NONCLIENTMETRICSA))
           {
               SetLastError(ERROR_INVALID_PARAMETER);
               return FALSE;
           }
           nclmw.cbSize = sizeof(NONCLIENTMETRICSW);
           nclmw.iBorderWidth = pnclma->iBorderWidth;
           nclmw.iScrollWidth = pnclma->iScrollWidth;
           nclmw.iScrollHeight = pnclma->iScrollHeight;
           nclmw.iCaptionWidth = pnclma->iCaptionWidth;
           nclmw.iCaptionHeight = pnclma->iCaptionHeight;
           nclmw.iSmCaptionWidth = pnclma->iSmCaptionWidth;
           nclmw.iSmCaptionHeight = pnclma->iSmCaptionHeight;
           nclmw.iMenuWidth = pnclma->iMenuWidth;
           nclmw.iMenuHeight = pnclma->iMenuHeight;
           LogFontA2W(&(nclmw.lfCaptionFont), &(pnclma->lfCaptionFont));
           LogFontA2W(&(nclmw.lfSmCaptionFont), &(pnclma->lfSmCaptionFont));
           LogFontA2W(&(nclmw.lfMenuFont), &(pnclma->lfMenuFont));
           LogFontA2W(&(nclmw.lfStatusFont), &(pnclma->lfStatusFont));
           LogFontA2W(&(nclmw.lfMessageFont), &(pnclma->lfMessageFont));

           return SystemParametersInfoW(uiAction, sizeof(NONCLIENTMETRICSW),
                                        &nclmw, fWinIni);
        }
      case SPI_GETICONMETRICS:
          {
              LPICONMETRICSA picma = (LPICONMETRICSA)pvParam;
              ICONMETRICSW icmw;
              if(picma->cbSize != sizeof(ICONMETRICSA))
              {
                  SetLastError(ERROR_INVALID_PARAMETER);
                  return FALSE;
              }
              icmw.cbSize = sizeof(ICONMETRICSW);
              if (!SystemParametersInfoW(uiAction, sizeof(ICONMETRICSW),
                                        &icmw, fWinIni))
                  return FALSE;

              picma->iHorzSpacing = icmw.iHorzSpacing;
              picma->iVertSpacing = icmw.iVertSpacing;
              picma->iTitleWrap = icmw.iTitleWrap;
              LogFontW2A(&(picma->lfFont), &(icmw.lfFont));
              return TRUE;
          }
      case SPI_SETICONMETRICS:
          {
              LPICONMETRICSA picma = (LPICONMETRICSA)pvParam;
              ICONMETRICSW icmw;
              if(picma->cbSize != sizeof(ICONMETRICSA))
              {
                  SetLastError(ERROR_INVALID_PARAMETER);
                  return FALSE;
              }
              icmw.cbSize = sizeof(ICONMETRICSW);
              icmw.iHorzSpacing = picma->iHorzSpacing;
              icmw.iVertSpacing = picma->iVertSpacing;
              icmw.iTitleWrap = picma->iTitleWrap;
              LogFontA2W(&(icmw.lfFont), &(picma->lfFont));

              return SystemParametersInfoW(uiAction, sizeof(ICONMETRICSW),
                                           &icmw, fWinIni);
          }
      case SPI_GETICONTITLELOGFONT:
        {
           LOGFONTW lfw;
           if (!SystemParametersInfoW(uiAction, 0, &lfw, fWinIni))
             return FALSE;
           LogFontW2A(pvParam, &lfw);
           return TRUE;
        }
      case SPI_SETICONTITLELOGFONT:
          {
              LPLOGFONTA plfa = (LPLOGFONTA)pvParam;
              LOGFONTW lfw;
              LogFontA2W(&lfw,plfa);
              return SystemParametersInfoW(uiAction, 0, &lfw, fWinIni);
          }
      case SPI_GETDESKWALLPAPER:
      {
        BOOL Ret;
        WCHAR awc[MAX_PATH];
        UNICODE_STRING ustrWallpaper;
        ANSI_STRING astrWallpaper;

        Ret = NtUserSystemParametersInfo(SPI_GETDESKWALLPAPER, MAX_PATH, awc, fWinIni);
        RtlInitUnicodeString(&ustrWallpaper, awc);
        RtlInitEmptyAnsiString(&astrWallpaper, pvParam, uiParam);
        RtlUnicodeStringToAnsiString(&astrWallpaper, &ustrWallpaper, FALSE);
        return Ret;
      }

      case SPI_SETDESKWALLPAPER:
      {
          UNICODE_STRING ustrWallpaper;
          BOOL Ret;

          if (pvParam)
          {
            if (!RtlCreateUnicodeStringFromAsciiz(&ustrWallpaper, pvParam))
            {
                ERR("RtlCreateUnicodeStringFromAsciiz failed\n");
                return FALSE;
            }
            pvParam = &ustrWallpaper;
          }

          Ret = NtUserSystemParametersInfo(SPI_SETDESKWALLPAPER, uiParam, pvParam, fWinIni);

          if (pvParam)
            RtlFreeUnicodeString(&ustrWallpaper);

          return Ret;
      }
    }
    return NtUserSystemParametersInfo(uiAction, uiParam, pvParam, fWinIni);
}

Referenced by ResetUserApiHook(), and SystemParametersInfoA().

RealSystemParametersInfoW()

BOOL WINAPI RealSystemParametersInfoW	(	UINT	,
		UINT	,
		PVOID	,
		UINT
	)

Definition at line 341 of file desktop.c.

{
  switch(uiAction)
  {

    case SPI_SETDESKWALLPAPER:
      {
          UNICODE_STRING ustrWallpaper;

          RtlInitUnicodeString(&ustrWallpaper, pvParam);
          return NtUserSystemParametersInfo(SPI_SETDESKWALLPAPER, uiParam, &ustrWallpaper, fWinIni);
      }
  }
  return NtUserSystemParametersInfo(uiAction, uiParam, pvParam, fWinIni);
}

Referenced by ResetUserApiHook(), and SystemParametersInfoW().

RealUserDrawCaption()

BOOL WINAPI RealUserDrawCaption	(	HWND	hWnd,
		HDC	hDC,
		LPCRECT	lpRc,
		UINT	uFlags
	)

Definition at line 80 of file nonclient.c.

{
    ERR("Real DC flags %08x\n",uFlags);
    return NtUserDrawCaption(hWnd, hDC, lpRc, uFlags);
}

Referenced by ResetUserApiHook().

RegisterUserApiHook()

BOOL WINAPI RegisterUserApiHook

(

PUSERAPIHOOKINFO

puah

)

Definition at line 376 of file usrapihk.c.

{
  UNICODE_STRING m_dllname1;
  UNICODE_STRING m_funname1;

  if (puah->m_size == sizeof(USERAPIHOOKINFO))
  {
     WARN("RegisterUserApiHook: %S and %S",puah->m_dllname1, puah->m_funname1);
     RtlInitUnicodeString(&m_dllname1, puah->m_dllname1);
     RtlInitUnicodeString(&m_funname1, puah->m_funname1);
     return NtUserRegisterUserApiHook( &m_dllname1, &m_funname1, 0, 0);
  }
  return FALSE;
}

ResetUserApiHook()

VOID FASTCALL ResetUserApiHook

(

PUSERAPIHOOK

puah

)

Definition at line 131 of file usrapihk.c.

{
  // Setup Structure.....
  puah->size = sizeof(USERAPIHOOK);
  puah->DefWindowProcA = RealDefWindowProcA;
  puah->DefWindowProcW = RealDefWindowProcW;
  puah->DefWndProcArray.MsgBitArray = NULL;
  puah->DefWndProcArray.Size = 0;
  puah->GetScrollInfo = RealGetScrollInfo;
  puah->SetScrollInfo = RealSetScrollInfo;
  puah->EnableScrollBar = NtUserEnableScrollBar;
  puah->AdjustWindowRectEx = RealAdjustWindowRectEx;
  puah->SetWindowRgn = NtUserSetWindowRgn;
  puah->PreWndProc = DefaultOWP;
  puah->PostWndProc = DefaultOWP;
  puah->WndProcArray.MsgBitArray = NULL;
  puah->WndProcArray.Size = 0;
  puah->PreDefDlgProc = DefaultOWP;
  puah->PostDefDlgProc = DefaultOWP;
  puah->DlgProcArray.MsgBitArray = NULL;
  puah->DlgProcArray.Size = 0;
  puah->GetSystemMetrics = RealGetSystemMetrics;
  puah->SystemParametersInfoA = RealSystemParametersInfoA;
  puah->SystemParametersInfoW = RealSystemParametersInfoW;
  puah->ForceResetUserApiHook = ForceResetUserApiHook;
  puah->DrawFrameControl = RealDrawFrameControl;
  puah->DrawCaption = RealUserDrawCaption;
  puah->MDIRedrawFrame = RealMDIRedrawFrame;
  puah->GetRealWindowOwner = GetRealWindowOwner;
}

Referenced by ClearUserApiHook(), ForceResetUserApiHook(), and InitUserApiHook().

UnregisterUserApiHook()

BOOL WINAPI UnregisterUserApiHook

(

VOID

)

Definition at line 394 of file usrapihk.c.

{
    return NtUserUnregisterUserApiHook();
}

Referenced by ThemeHooksRemove().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

user32

)

Variable Documentation

gcCallUserApiHook

LONG gcCallUserApiHook = 0

Definition at line 35 of file usrapihk.c.

Referenced by BeginIfHookedUserApiHook(), ClearUserApiHook(), and EndUserApiHook().

gcLoadUserApiHook

DWORD gcLoadUserApiHook = 0

Definition at line 34 of file usrapihk.c.

Referenced by ClearUserApiHook(), EndUserApiHook(), and InitUserApiHook().

gcsUserApiHook

RTL_CRITICAL_SECTION gcsUserApiHook

Definition at line 39 of file usrapihk.c.

Referenced by ClearUserApiHook(), EndUserApiHook(), Init(), and InitUserApiHook().

gfUserApiHook

DWORD gfUserApiHook = 0

Definition at line 36 of file usrapihk.c.

Referenced by ClearUserApiHook(), InitUserApiHook(), and IsInsideUserApiHook().

ghmodUserApiHook

HINSTANCE ghmodUserApiHook = NULL

Definition at line 37 of file usrapihk.c.

Referenced by ClearUserApiHook(), ClientLoadLibrary(), EndUserApiHook(), ForceResetUserApiHook(), InitUserApiHook(), and IsInsideUserApiHook().

gpfnInitUserApi

USERAPIHOOKPROC gpfnInitUserApi

Definition at line 38 of file usrapihk.c.

Referenced by ClearUserApiHook(), EndUserApiHook(), ForceResetUserApiHook(), and InitUserApiHook().

grgbDlgLiteHookMsg

BYTE grgbDlgLiteHookMsg[128]

Definition at line 43 of file usrapihk.c.

Referenced by InitUserApiHook().

grgbDwpLiteHookMsg

BYTE grgbDwpLiteHookMsg[128]

Definition at line 41 of file usrapihk.c.

Referenced by InitUserApiHook().

grgbWndLiteHookMsg

BYTE grgbWndLiteHookMsg[128]

Definition at line 42 of file usrapihk.c.

Referenced by InitUserApiHook().

guah

USERAPIHOOK guah

Initial value:

=
{
  sizeof(USERAPIHOOK),
  RealDefWindowProcA,
  RealDefWindowProcW,
  {NULL, 0},
  RealGetScrollInfo,
  RealSetScrollInfo,
  NtUserEnableScrollBar,
  RealAdjustWindowRectEx,
  NtUserSetWindowRgn,
  DefaultOWP,
  DefaultOWP,
  {NULL, 0},
  DefaultOWP,
  DefaultOWP,
  {NULL, 0},
  RealGetSystemMetrics,
  RealSystemParametersInfoA,
  RealSystemParametersInfoW,
  ForceResetUserApiHook,
  RealDrawFrameControl,
  NtUserDrawCaption,
  RealMDIRedrawFrame,
  GetRealWindowOwner,
}

Definition at line 344 of file usrapihk.c.

Referenced by AdjustWindowRectEx(), ClearUserApiHook(), DefWindowProcA(), DefWindowProcW(), DrawCaption(), DrawFrameControl(), EnableScrollBar(), ForceResetUserApiHook(), GetScrollInfo(), GetSystemMetrics(), InitUserApiHook(), IntCallWindowProcA(), IntCallWindowProcW(), MDIRedrawFrame(), SetScrollInfo(), SetWindowRgn(), SystemParametersInfoA(), and SystemParametersInfoW().