[Bug 38275] New: DeferWindowPos accept NULL HWND and fail at EndDeferWindowPos()
wine-bugs at winehq.org
wine-bugs at winehq.org
Mon Mar 23 19:48:43 CDT 2015
https://bugs.winehq.org/show_bug.cgi?id=38275
Bug ID: 38275
Summary: DeferWindowPos accept NULL HWND and fail at
EndDeferWindowPos()
Product: Wine
Version: unspecified
Hardware: x86
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: user32
Assignee: wine-bugs at winehq.org
Reporter: rozhuk.im at gmail.com
Distribution: ---
http://source.winehq.org/git/wine.git/blob/e882cdf55cc004b5ffb7b85d912b4733da761ba6:/dlls/user/winpos.c
DeferWindowPos( HDWP hdwp, HWND hwnd...
does not check: hwnd != NULL (windows does!)
and later EndDeferWindowPos() fail in
http://source.winehq.org/git/wine.git/blob/e882cdf55cc004b5ffb7b85d912b4733da761ba6:/dlls/winex11.drv/winpos.c
X11DRV_SetWindowPos(...)
...
763 /* Fix redundant flags */
764 if (!fixup_flags( winpos )) return FALSE;
fixup_flags()
...
WND *wndPtr = WIN_GetPtr( winpos->hwnd );
382 BOOL ret = TRUE;
383
384 if (!wndPtr || wndPtr == WND_OTHER_PROCESS)
385 {
386 SetLastError( ERROR_INVALID_WINDOW_HANDLE );
387 return FALSE;
388 }
Miranda NG was affected.
Workaround:
if (NULL != hwnd) /* Wine fix. */
hdwp = DeferWindowPos(hdwp, hwnd...);
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