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- Return empty region in DceGetVisRgn if there is nothing to return.

svn path=/trunk/; revision=64179
This commit is contained in:
Jérôme Gardou 2014-09-17 12:01:34 +00:00
parent 00b90311f3
commit d87a241b25
1 changed files with 9 additions and 4 deletions
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13
reactos/win32ss/user/ntuser/windc.c
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@ -69,10 +69,15 @@ static
PREGION FASTCALL
DceGetVisRgn(PWND Window, ULONG Flags, HWND hWndChild, ULONG CFlags)
{
return VIS_ComputeVisibleRegion( Window,
0 == (Flags & DCX_WINDOW),
0 != (Flags & DCX_CLIPCHILDREN),
0 != (Flags & DCX_CLIPSIBLINGS));
PREGION Rgn;
Rgn = VIS_ComputeVisibleRegion( Window,
0 == (Flags & DCX_WINDOW),
0 != (Flags & DCX_CLIPCHILDREN),
0 != (Flags & DCX_CLIPSIBLINGS));
/* Caller expects a non-null region */
if (!Rgn)
Rgn = IntSysCreateRectpRgn(0, 0, 0, 0);
return Rgn;
}
PDCE FASTCALL