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- Apply band-aid patch from CORE-8506. Problem still persists, how did a bad region get plugged into the DCE structure?

svn path=/trunk/; revision=64054
This commit is contained in:
James Tabor 2014-09-06 17:47:45 +00:00
parent adcc14bdf9
commit 7ae67c3b7a
1 changed files with 8 additions and 4 deletions
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6
reactos/win32ss/user/ntuser/windc.c
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@ -252,9 +252,13 @@ DceUpdateVisRgn(DCE *Dce, PWND Window, ULONG Flags)
noparent: noparent:
if (Flags & DCX_INTERSECTRGN) if (Flags & DCX_INTERSECTRGN)
{ {
PREGION RgnClip = NULL;
if (Dce->hrgnClip != NULL) if (Dce->hrgnClip != NULL)
RgnClip = REGION_LockRgn(Dce->hrgnClip);
if (RgnClip)
{ {
PREGION RgnClip = REGION_LockRgn(Dce->hrgnClip);
IntGdiCombineRgn(RgnVisible, RgnVisible, RgnClip, RGN_AND); IntGdiCombineRgn(RgnVisible, RgnVisible, RgnClip, RGN_AND);
REGION_UnlockRgn(RgnClip); REGION_UnlockRgn(RgnClip);
} }