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- NtGdiCreateRectRgn should accept negative width and height. It's supposed to be handled just like in NtGdiSetRectRgn.

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svn path=/trunk/; revision=9384
This commit is contained in:
Filip Navara 2004-05-14 16:56:48 +00:00
parent 3f9294eaee
commit 394e0f648e
1 changed files with 13 additions and 39 deletions
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36
reactos/subsys/win32k/objects/region.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: region.c,v 1.51 2004/05/10 17:07:20 weiden Exp $ */
/* $Id: region.c,v 1.52 2004/05/14 16:56:48 navaraf Exp $ */
#include <w32k.h>
#include <win32k/float.h>
@ -1711,46 +1711,20 @@ NtGdiCreatePolyPolygonRgn(CONST PPOINT pt,
UNIMPLEMENTED;
}
HRGN
STDCALL
NtGdiCreateRectRgn(INT LeftRect,
INT TopRect,
INT RightRect,
INT BottomRect)
HRGN STDCALL
NtGdiCreateRectRgn(INT LeftRect, INT TopRect, INT RightRect, INT BottomRect)
{
HRGN hRgn;
PROSRGNDATA pRgnData;
PRECT pRect;
if (RightRect < LeftRect || BottomRect < TopRect)
{
DPRINT1("Invalid parameters (%d, %d) - (%d, %d)\n", LeftRect, TopRect, RightRect, BottomRect);
SetLastWin32Error(ERROR_INVALID_PARAMETER);
return NULL;
}
/* Allocate region data structure with space for 1 RECT */
if ((hRgn = RGNDATA_AllocRgn(1)))
{
if ((pRgnData = RGNDATA_LockRgn(hRgn)))
{
pRect = (PRECT)pRgnData->Buffer;
ASSERT(pRect);
/* Fill in the region data header */
pRgnData->rdh.iType = (LeftRect == RightRect || TopRect == BottomRect) ? NULLREGION : SIMPLEREGION;
NtGdiSetRect(&(pRgnData->rdh.rcBound), LeftRect, TopRect, RightRect, BottomRect);
/* use NtGdiCopyRect when implemented */
NtGdiSetRect(pRect, LeftRect, TopRect, RightRect, BottomRect);
RGNDATA_UnlockRgn(hRgn);
if (NtGdiSetRectRgn(hRgn, LeftRect, TopRect, RightRect, BottomRect))
return hRgn;
}
NtGdiDeleteObject(hRgn);
}
DPRINT1("NtGdiCreateRectRgn: can't allocate region\n");
SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY);
return NULL;
}