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Limit invalidate region if required

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svn path=/trunk/; revision=19894
This commit is contained in:
Gé van Geldorp 2005-12-04 22:31:43 +00:00
parent a213198509
commit 052218fc23
1 changed files with 13 additions and 0 deletions
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13
reactos/subsys/win32k/ntuser/painting.c
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@ -319,6 +319,19 @@ IntInvalidateWindows(PWINDOW_OBJECT Window, HRGN hRgn, ULONG Flags)
BOOL HadPaintMessage, HadNCPaintMessage;
BOOL HasPaintMessage, HasNCPaintMessage;
/*
* If the nonclient is not to be redrawn, clip the region to the client
* rect
*/
if (0 != (Flags & RDW_INVALIDATE) && 0 == (Flags & RDW_FRAME))
{
HRGN hRgnClient;
hRgnClient = UnsafeIntCreateRectRgnIndirect(&Window->ClientRect);
RgnType = NtGdiCombineRgn(hRgn, hRgn, hRgnClient, RGN_AND);
NtGdiDeleteObject(hRgnClient);
}
/*
* Clip the given region with window rectangle (or region)
*/