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reactos/win32ss/user/user32/windows/defwnd.c
Joachim Henze 175fa27755 [0.4.9][NTUSER][USER32] Tracking menu CORE-17338 (#4048), [EXPLORER] Send WM_POPUPSYSTEMMENU asynchronously (#4047) CORE-16353 
This prevents the tracking menu from erroneously closing itself right after it was opened in some cases.
Fixes CORE-17338 which got unhidden by 0.4.15-dev-1126-g 58b0558f94
And fixes CORE-15760 which got unhidden by SVN r74972 == git 19dd22d422

Since both symptoms look very similar but the unhiding revisions did differ,
that could mean we do have some kind of race condition here.
I guess this fix is more like a workaround.

2 Fixes picked:
0.4.15-dev-3313-g 6417b2323d [NTUSER][USER32] Workaround tracking menu on CORE-17338 CORE-15760 (#4048)
to prevent the menu from auto-closing

and
0.4.15-dev-3297-g 037c744eb1 [EXPLORER] Send WM_POPUPSYSTEMMENU asynchronously CORE-16353 (#4047)
to make the taskbar button turn into pressed state when the menu opens
2022-01-10 07:18:41 +01:00

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/*
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS user32.dll
* FILE: win32ss/user/user32/windows/defwnd.c
* PURPOSE: Window management
* PROGRAMMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
* UPDATE HISTORY:
* 06-06-2001 CSH Created
*/
#include <user32.h>
WINE_DEFAULT_DEBUG_CHANNEL(user32);
/*
* @implemented
*/
DWORD
WINAPI
DECLSPEC_HOTPATCH
GetSysColor(int nIndex)
{
if(nIndex >= 0 && nIndex < NUM_SYSCOLORS)
{
return gpsi->argbSystem[nIndex];
}
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
/*
* @implemented
*/
HBRUSH
WINAPI
DECLSPEC_HOTPATCH
GetSysColorBrush(int nIndex)
{
if(nIndex >= 0 && nIndex < NUM_SYSCOLORS)
{
return gpsi->ahbrSystem[nIndex];
}
return NULL;
}
/*
* @implemented
*/
BOOL
WINAPI
SetSysColors(
int cElements,
CONST INT *lpaElements,
CONST COLORREF *lpaRgbValues)
{
return NtUserSetSysColors(cElements, lpaElements, lpaRgbValues, 0);
}
BOOL
FASTCALL
DefSetText(HWND hWnd, PCWSTR String, BOOL Ansi)
{
BOOL Ret;
LARGE_STRING lsString;
if ( String )
{
if ( Ansi )
RtlInitLargeAnsiString((PLARGE_ANSI_STRING)&lsString, (PCSZ)String, 0);
else
RtlInitLargeUnicodeString((PLARGE_UNICODE_STRING)&lsString, String, 0);
}
Ret = NtUserDefSetText(hWnd, (String ? &lsString : NULL));
return Ret;
}
HWND FASTCALL
IntFindChildWindowToOwner(HWND hRoot, HWND hOwner)
{
HWND Ret;
PWND Child, OwnerWnd, Root, Owner;
Root = ValidateHwnd(hRoot);
Owner = ValidateHwnd(hOwner);
for( Child = Root->spwndChild ? DesktopPtrToUser(Root->spwndChild) : NULL;
Child;
Child = Child->spwndNext ? DesktopPtrToUser(Child->spwndNext) : NULL )
{
OwnerWnd = Child->spwndOwner ? DesktopPtrToUser(Child->spwndOwner) : NULL;
if(!OwnerWnd)
continue;
if (!(Child->style & WS_POPUP) || !(Child->style & WS_VISIBLE))
continue;
if(OwnerWnd == Owner)
{
Ret = Child->head.h;
return Ret;
}
}
ERR("IDCWTO Nothing found\n");
return NULL;
}
/***********************************************************************
* DefWndTrackScrollBar
*
* Track a mouse button press on the horizontal or vertical scroll-bar.
*/
static VOID
DefWndTrackScrollBar(HWND Wnd, WPARAM wParam, POINT Pt)
{
INT ScrollBar;
if (SC_HSCROLL == (wParam & 0xfff0))
{
if (HTHSCROLL != (wParam & 0x0f))
{
return;
}
ScrollBar = SB_HORZ;
}
else /* SC_VSCROLL */
{
if (HTVSCROLL != (wParam & 0x0f))
{
return;
}
ScrollBar = SB_VERT;
}
ScrollTrackScrollBar(Wnd, ScrollBar, Pt );
}
LRESULT WINAPI DoAppSwitch( WPARAM wParam, LPARAM lParam);
LRESULT
DefWndHandleSysCommand(HWND hWnd, WPARAM wParam, LPARAM lParam)
{
POINT Pt;
LRESULT lResult;
if (!IsWindowEnabled( hWnd )) return 0;
switch (wParam & 0xfff0)
{
case SC_MOVE:
case SC_SIZE:
// case SC_DEFAULT:
case SC_MOUSEMENU:
case SC_KEYMENU:
case SC_SCREENSAVE:
case SC_MINIMIZE:
case SC_MAXIMIZE:
case SC_RESTORE:
case SC_CLOSE:
case SC_HOTKEY:
NtUserMessageCall( hWnd, WM_SYSCOMMAND, wParam, lParam, (ULONG_PTR)&lResult, FNID_DEFWINDOWPROC, FALSE);
return 0;
default:
break;
}
if (ISITHOOKED(WH_CBT))
{
NtUserMessageCall( hWnd, WM_SYSCOMMAND, wParam, lParam, (ULONG_PTR)&lResult, FNID_DEFWINDOWPROC, FALSE);
if (lResult) return 0;
}
switch (wParam & 0xfff0)
{
case SC_VSCROLL:
case SC_HSCROLL:
{
Pt.x = (short)LOWORD(lParam);
Pt.y = (short)HIWORD(lParam);
DefWndTrackScrollBar(hWnd, wParam, Pt);
}
break;
case SC_TASKLIST:
WinExec( "taskman.exe", SW_SHOWNORMAL );
break;
case SC_NEXTWINDOW:
case SC_PREVWINDOW:
DoAppSwitch( wParam, lParam);
break;
default:
FIXME("Unimplemented DefWndHandleSysCommand wParam 0x%x\n",wParam);
break;
}
return(0);
}
/***********************************************************************
* DefWndControlColor
*
* Default colors for control painting.
*/
HBRUSH
DefWndControlColor(HDC hDC, UINT ctlType)
{
if (ctlType == CTLCOLOR_SCROLLBAR)
{
HBRUSH hb = GetSysColorBrush(COLOR_SCROLLBAR);
COLORREF bk = GetSysColor(COLOR_3DHILIGHT);
SetTextColor(hDC, GetSysColor(COLOR_3DFACE));
SetBkColor(hDC, bk);
/* if COLOR_WINDOW happens to be the same as COLOR_3DHILIGHT
* we better use 0x55aa bitmap brush to make scrollbar's background
* look different from the window background.
*/
if ( bk == GetSysColor(COLOR_WINDOW))
return gpsi->hbrGray;
UnrealizeObject( hb );
return hb;
}
SetTextColor(hDC, GetSysColor(COLOR_WINDOWTEXT));
if ((ctlType == CTLCOLOR_EDIT) || (ctlType == CTLCOLOR_LISTBOX))
{
SetBkColor(hDC, GetSysColor(COLOR_WINDOW));
}
else
{
SetBkColor(hDC, GetSysColor(COLOR_3DFACE));
return GetSysColorBrush(COLOR_3DFACE);
}
return GetSysColorBrush(COLOR_WINDOW);
}
static BOOL CALLBACK
UserSendUiUpdateMsg(HWND hwnd, LPARAM lParam)
{
SendMessageW(hwnd, WM_UPDATEUISTATE, (WPARAM)lParam, 0);
return TRUE;
}
/* WARNING: Redundant with /ntuser/defwnd.c!UserPaintCaption !!
Use TWOPARAM_ROUTINE_REDRAWTITLE/REDRAWFRAME or HWNDLOCK_ROUTINE_REDRAWFRAMEANDHOOK .
*/
static void
UserPaintCaption(PWND pwnd, INT Flags)
{
if ( pwnd->style & WS_VISIBLE && (pwnd->style & WS_CAPTION) == WS_CAPTION )
{
if (pwnd->state & WNDS_HASCAPTION && NtUserQueryWindow(UserHMGetHandle(pwnd), QUERY_WINDOW_FOREGROUND))
Flags |= DC_ACTIVE;
/*
* When themes are not enabled we can go on and paint the non client area.
* However if we do that with themes enabled we will draw a classic frame.
* This is solved by sending a themes specific message to notify the themes
* engine that the caption needs to be redrawn
*/
if(gpsi->dwSRVIFlags & SRVINFO_APIHOOK)
{
/*
* This will cause uxtheme to either paint the themed caption or call
* RealUserDrawCaption in order to draw the classic caption when themes
* are disabled but the themes service is enabled
*/
SendMessageW(UserHMGetHandle(pwnd), WM_NCUAHDRAWCAPTION, Flags, 0);
}
else
{
RECT rc = {0,0,0,0};
HDC hDC = GetDCEx(UserHMGetHandle(pwnd), NULL, DCX_WINDOW|DCX_USESTYLE);
NtUserDrawCaption(UserHMGetHandle(pwnd), hDC, &rc, DC_DRAWCAPTIONMD|Flags);
ReleaseDC(UserHMGetHandle(pwnd), hDC);
}
}
//NtUserCallTwoParam((DWORD_PTR)UserHMGetHandle(pwnd),Flags,TWOPARAM_ROUTINE_REDRAWTITLE)
}
LRESULT FASTCALL
DefWndGetIcon(PWND pWnd, WPARAM wParam, LPARAM lParam)
{
HICON hIconRet;
if ( wParam > ICON_SMALL2 )
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
switch(wParam)
{
case ICON_BIG:
hIconRet = UserGetProp(UserHMGetHandle(pWnd), gpsi->atomIconProp, TRUE);
break;
case ICON_SMALL:
case ICON_SMALL2:
hIconRet = UserGetProp(UserHMGetHandle(pWnd), gpsi->atomIconSmProp, TRUE);
break;
default:
break;
}
return (LRESULT)hIconRet;
}
LRESULT WINAPI
User32DefWindowProc(HWND hWnd,
UINT Msg,
WPARAM wParam,
LPARAM lParam,
BOOL bUnicode)
{
PWND pWnd = NULL;
if (hWnd)
{
pWnd = ValidateHwnd(hWnd);
if (!pWnd) return 0;
}
switch (Msg)
{
case WM_POPUPSYSTEMMENU:
{
/* This is an undocumented message used by the windows taskbar to
display the system menu of windows that belong to other processes. */
HMENU menu = GetSystemMenu(hWnd, FALSE);
ERR("WM_POPUPSYSTEMMENU\n");
if (menu)
{
SetForegroundWindow(hWnd);
TrackPopupMenu(menu, TPM_LEFTBUTTON|TPM_RIGHTBUTTON|TPM_SYSTEM_MENU,
LOWORD(lParam), HIWORD(lParam), 0, hWnd, NULL);
}
return 0;
}
case WM_RBUTTONUP:
{
POINT Pt;
Pt.x = GET_X_LPARAM(lParam);
Pt.y = GET_Y_LPARAM(lParam);
ClientToScreen(hWnd, &Pt);
lParam = MAKELPARAM(Pt.x, Pt.y);
if (bUnicode)
{
SendMessageW(hWnd, WM_CONTEXTMENU, (WPARAM)hWnd, lParam);
}
else
{
SendMessageA(hWnd, WM_CONTEXTMENU, (WPARAM)hWnd, lParam);
}
break;
}
case WM_NCRBUTTONUP:
/*
* FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
* in Windows), but what _should_ we do? According to MSDN :
* "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
* message to the window". When is it appropriate?
*/
ERR("WM_NCRBUTTONUP\n");
break;
case WM_XBUTTONUP:
case WM_NCXBUTTONUP:
if (HIWORD(wParam) == XBUTTON1 || HIWORD(wParam) == XBUTTON2)
{
SendMessageW(hWnd, WM_APPCOMMAND, (WPARAM)hWnd,
MAKELPARAM(LOWORD(wParam), FAPPCOMMAND_MOUSE | HIWORD(wParam)));
}
break;
case WM_CONTEXTMENU:
{
if (GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CHILD)
{
if (bUnicode)
{
SendMessageW(GetParent(hWnd), Msg, wParam, lParam);
}
else
{
SendMessageA(GetParent(hWnd), WM_CONTEXTMENU, wParam, lParam);
}
}
else
{
goto GoSS;
}
break;
}
case WM_CLOSE:
DestroyWindow(hWnd);
return (0);
case WM_MOUSEACTIVATE:
if (GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CHILD)
{
LONG Ret = SendMessageW(GetParent(hWnd), WM_MOUSEACTIVATE, wParam, lParam);
if (Ret) return (Ret);
}
return ( (HIWORD(lParam) == WM_LBUTTONDOWN && LOWORD(lParam) == HTCAPTION) ? MA_NOACTIVATE : MA_ACTIVATE );
case WM_ACTIVATE:
/* The default action in Windows is to set the keyboard focus to
* the window, if it's being activated and not minimized */
if (LOWORD(wParam) != WA_INACTIVE &&
!(GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_MINIMIZE))
{
//ERR("WM_ACTIVATE %p\n",hWnd);
SetFocus(hWnd);
}
break;
case WM_MOUSEWHEEL:
if (GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CHILD)
return SendMessageW( GetParent(hWnd), WM_MOUSEWHEEL, wParam, lParam);
break;
case WM_ERASEBKGND:
case WM_ICONERASEBKGND:
{
RECT Rect;
HBRUSH hBrush = (HBRUSH)GetClassLongPtrW(hWnd, GCL_HBRBACKGROUND);
if (NULL == hBrush)
{
return 0;
}
if (GetClassLongPtrW(hWnd, GCL_STYLE) & CS_PARENTDC)
{
/* can't use GetClipBox with a parent DC or we fill the whole parent */
GetClientRect(hWnd, &Rect);
DPtoLP((HDC)wParam, (LPPOINT)&Rect, 2);
}
else
{
GetClipBox((HDC)wParam, &Rect);
}
FillRect((HDC)wParam, &Rect, hBrush);
return (1);
}
case WM_CTLCOLORMSGBOX:
case WM_CTLCOLOREDIT:
case WM_CTLCOLORLISTBOX:
case WM_CTLCOLORBTN:
case WM_CTLCOLORDLG:
case WM_CTLCOLORSTATIC:
case WM_CTLCOLORSCROLLBAR:
return (LRESULT) DefWndControlColor((HDC)wParam, Msg - WM_CTLCOLORMSGBOX);
case WM_CTLCOLOR:
return (LRESULT) DefWndControlColor((HDC)wParam, HIWORD(lParam));
case WM_SYSCOMMAND:
return (DefWndHandleSysCommand(hWnd, wParam, lParam));
case WM_VKEYTOITEM:
case WM_CHARTOITEM:
return (-1);
/*
case WM_DROPOBJECT:
return DRAG_FILE;
*/
case WM_QUERYDROPOBJECT:
{
if (GetWindowLongPtrW(hWnd, GWL_EXSTYLE) & WS_EX_ACCEPTFILES)
{
return(1);
}
break;
}
case WM_QUERYDRAGICON:
{
UINT Len;
HICON hIcon;
hIcon = (HICON)GetClassLongPtrW(hWnd, GCL_HICON);
if (hIcon)
{
return ((LRESULT)hIcon);
}
for (Len = 1; Len < 64; Len++)
{
if ((hIcon = LoadIconW(NULL, MAKEINTRESOURCEW(Len))) != NULL)
{
return((LRESULT)hIcon);
}
}
return ((LRESULT)LoadIconW(0, IDI_APPLICATION));
}
case WM_ISACTIVEICON:
{
BOOL isai;
isai = (pWnd->state & WNDS_ACTIVEFRAME) != 0;
return isai;
}
case WM_NOTIFYFORMAT:
{
if (lParam == NF_QUERY)
return IsWindowUnicode(hWnd) ? NFR_UNICODE : NFR_ANSI;
break;
}
case WM_GETICON:
{
return DefWndGetIcon(pWnd, wParam, lParam);
}
case WM_HELP:
{
if (bUnicode)
{
SendMessageW(GetParent(hWnd), Msg, wParam, lParam);
}
else
{
SendMessageA(GetParent(hWnd), Msg, wParam, lParam);
}
break;
}
case WM_QUERYOPEN:
case WM_QUERYENDSESSION:
{
return (1);
}
case WM_INPUTLANGCHANGEREQUEST:
{
HKL NewHkl;
if(wParam & INPUTLANGCHANGE_BACKWARD
&& wParam & INPUTLANGCHANGE_FORWARD)
{
return FALSE;
}
//FIXME: What to do with INPUTLANGCHANGE_SYSCHARSET ?
if(wParam & INPUTLANGCHANGE_BACKWARD) NewHkl = (HKL) HKL_PREV;
else if(wParam & INPUTLANGCHANGE_FORWARD) NewHkl = (HKL) HKL_NEXT;
else NewHkl = (HKL) lParam;
NtUserActivateKeyboardLayout(NewHkl, 0);
return TRUE;
}
case WM_INPUTLANGCHANGE:
{
int count = 0;
HWND *win_array = WIN_ListChildren( hWnd );
if (!win_array)
break;
while (win_array[count])
SendMessageW( win_array[count++], WM_INPUTLANGCHANGE, wParam, lParam);
HeapFree(GetProcessHeap(),0,win_array);
break;
}
case WM_QUERYUISTATE:
{
LRESULT Ret = 0;
PWND Wnd = ValidateHwnd(hWnd);
if (Wnd != NULL)
{
if (Wnd->HideFocus)
Ret |= UISF_HIDEFOCUS;
if (Wnd->HideAccel)
Ret |= UISF_HIDEACCEL;
}
return Ret;
}
case WM_CHANGEUISTATE:
{
BOOL AlwaysShowCues = FALSE;
WORD Action = LOWORD(wParam);
WORD Flags = HIWORD(wParam);
PWND Wnd;
SystemParametersInfoW(SPI_GETKEYBOARDCUES, 0, &AlwaysShowCues, 0);
if (AlwaysShowCues)
break;
Wnd= ValidateHwnd(hWnd);
if (!Wnd || lParam != 0)
break;
if (Flags & ~(UISF_HIDEFOCUS | UISF_HIDEACCEL | UISF_ACTIVE))
break;
if (Flags & UISF_ACTIVE)
{
WARN("WM_CHANGEUISTATE does not yet support UISF_ACTIVE!\n");
}
if (Action == UIS_INITIALIZE)
{
PDESKTOPINFO Desk = GetThreadDesktopInfo();
if (Desk == NULL)
break;
Action = Desk->LastInputWasKbd ? UIS_CLEAR : UIS_SET;
Flags = UISF_HIDEFOCUS | UISF_HIDEACCEL;
/* We need to update wParam in case we need to send out messages */
wParam = MAKEWPARAM(Action, Flags);
}
switch (Action)
{
case UIS_SET:
/* See if we actually need to change something */
if ((Flags & UISF_HIDEFOCUS) && !Wnd->HideFocus)
break;
if ((Flags & UISF_HIDEACCEL) && !Wnd->HideAccel)
break;
/* Don't need to do anything... */
return 0;
case UIS_CLEAR:
/* See if we actually need to change something */
if ((Flags & UISF_HIDEFOCUS) && Wnd->HideFocus)
break;
if ((Flags & UISF_HIDEACCEL) && Wnd->HideAccel)
break;
/* Don't need to do anything... */
return 0;
default:
WARN("WM_CHANGEUISTATE: Unsupported Action 0x%x\n", Action);
break;
}
if ((Wnd->style & WS_CHILD) && Wnd->spwndParent != NULL)
{
/* We're a child window and we need to pass this message down until
we reach the root */
hWnd = UserHMGetHandle((PWND)DesktopPtrToUser(Wnd->spwndParent));
}
else
{
/* We're a top level window, we need to change the UI state */
Msg = WM_UPDATEUISTATE;
}
if (bUnicode)
return SendMessageW(hWnd, Msg, wParam, lParam);
else
return SendMessageA(hWnd, Msg, wParam, lParam);
}
case WM_UPDATEUISTATE:
{
BOOL Change = TRUE;
BOOL AlwaysShowCues = FALSE;
WORD Action = LOWORD(wParam);
WORD Flags = HIWORD(wParam);
PWND Wnd;
SystemParametersInfoW(SPI_GETKEYBOARDCUES, 0, &AlwaysShowCues, 0);
if (AlwaysShowCues)
break;
Wnd = ValidateHwnd(hWnd);
if (!Wnd || lParam != 0)
break;
if (Flags & ~(UISF_HIDEFOCUS | UISF_HIDEACCEL | UISF_ACTIVE))
break;
if (Flags & UISF_ACTIVE)
{
WARN("WM_UPDATEUISTATE does not yet support UISF_ACTIVE!\n");
}
if (Action == UIS_INITIALIZE)
{
PDESKTOPINFO Desk = GetThreadDesktopInfo();
if (Desk == NULL)
break;
Action = Desk->LastInputWasKbd ? UIS_CLEAR : UIS_SET;
Flags = UISF_HIDEFOCUS | UISF_HIDEACCEL;
/* We need to update wParam for broadcasting the update */
wParam = MAKEWPARAM(Action, Flags);
}
switch (Action)
{
case UIS_SET:
/* See if we actually need to change something */
if ((Flags & UISF_HIDEFOCUS) && !Wnd->HideFocus)
break;
if ((Flags & UISF_HIDEACCEL) && !Wnd->HideAccel)
break;
/* Don't need to do anything... */
Change = FALSE;
break;
case UIS_CLEAR:
/* See if we actually need to change something */
if ((Flags & UISF_HIDEFOCUS) && Wnd->HideFocus)
break;
if ((Flags & UISF_HIDEACCEL) && Wnd->HideAccel)
break;
/* Don't need to do anything... */
Change = FALSE;
break;
default:
WARN("WM_UPDATEUISTATE: Unsupported Action 0x%x\n", Action);
return 0;
}
/* Pack the information and call win32k */
if (Change)
{
if (!NtUserxUpdateUiState(hWnd, Flags | ((DWORD)Action << 3)))
break;
}
/* Always broadcast the update to all children */
EnumChildWindows(hWnd,
UserSendUiUpdateMsg,
(LPARAM)wParam);
break;
}
/* Move to Win32k !*/
case WM_SHOWWINDOW:
if (!lParam) break; // Call when it is necessary.
case WM_LBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_NCLBUTTONDOWN:
case WM_NCRBUTTONDOWN:
case WM_LBUTTONDBLCLK:
case WM_NCLBUTTONDBLCLK:
case WM_KEYF1:
case WM_KEYUP:
case WM_SYSKEYUP:
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
case WM_SYSCHAR:
case WM_CANCELMODE:
case WM_PAINTICON:
case WM_PAINT:
case WM_PRINT:
case WM_SETICON:
case WM_SYSCOLORCHANGE:
case WM_NCUAHDRAWCAPTION:
case WM_NCUAHDRAWFRAME:
case WM_NCPAINT:
case WM_NCACTIVATE:
case WM_NCCALCSIZE:
case WM_NCHITTEST:
case WM_SYNCPAINT:
case WM_SETREDRAW:
case WM_CLIENTSHUTDOWN:
case WM_GETHOTKEY:
case WM_SETHOTKEY:
case WM_WINDOWPOSCHANGING:
case WM_WINDOWPOSCHANGED:
case WM_APPCOMMAND:
case WM_SETCURSOR:
GoSS:
{
LRESULT lResult;
NtUserMessageCall( hWnd, Msg, wParam, lParam, (ULONG_PTR)&lResult, FNID_DEFWINDOWPROC, !bUnicode);
return lResult;
}
}
return 0;
}
LRESULT WINAPI
RealDefWindowProcA(HWND hWnd,
UINT Msg,
WPARAM wParam,
LPARAM lParam)
{
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;
UINT 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;
}
LRESULT WINAPI
RealDefWindowProcW(HWND hWnd,
UINT Msg,
WPARAM wParam,
LPARAM lParam)
{
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)
{
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;
}
LRESULT WINAPI
DefWindowProcA(HWND hWnd,
UINT Msg,
WPARAM wParam,
LPARAM lParam)
{
BOOL Hook, msgOverride = FALSE;
LRESULT Result = 0;
LoadUserApiHook();
Hook = BeginIfHookedUserApiHook();
if (Hook)
{
msgOverride = IsMsgOverride(Msg, &guah.DefWndProcArray);
if(msgOverride == FALSE)
{
EndUserApiHook();
}
}
/* Bypass SEH and go direct. */
if (!Hook || !msgOverride)
return RealDefWindowProcA(hWnd, Msg, wParam, lParam);
_SEH2_TRY
{
Result = guah.DefWindowProcA(hWnd, Msg, wParam, lParam);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
ERR("Got exception in hooked DefWindowProcA!\n");
}
_SEH2_END;
EndUserApiHook();
return Result;
}
LRESULT WINAPI
DefWindowProcW(HWND hWnd,
UINT Msg,
WPARAM wParam,
LPARAM lParam)
{
BOOL Hook, msgOverride = FALSE;
LRESULT Result = 0;
LoadUserApiHook();
Hook = BeginIfHookedUserApiHook();
if (Hook)
{
msgOverride = IsMsgOverride(Msg, &guah.DefWndProcArray);
if(msgOverride == FALSE)
{
EndUserApiHook();
}
}
/* Bypass SEH and go direct. */
if (!Hook || !msgOverride)
return RealDefWindowProcW(hWnd, Msg, wParam, lParam);
_SEH2_TRY
{
Result = guah.DefWindowProcW(hWnd, Msg, wParam, lParam);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
ERR("Got exception in hooked DefWindowProcW!\n");
}
_SEH2_END;
EndUserApiHook();
return Result;
}
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