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Fix incorrect pointer arithmetic in NtGdiPtInRegion()

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svn path=/trunk/; revision=8849
This commit is contained in:
Gé van Geldorp
2004-03-23 17:07:41 +00:00
parent e207cba272
commit 4e955d6423
1 changed files with 9 additions and 6 deletions
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reactos/subsys/win32k/objects/region.c
+9 -6
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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 1.44 2004/03/23 16:32:20 weiden Exp $ */
/* $Id: region.c,v 1.45 2004/03/23 17:07:41 gvg Exp $ */
#undef WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <ddk/ntddk.h>
@@ -2051,16 +2051,19 @@ NtGdiPtInRegion(HRGN hRgn,
{
PROSRGNDATA rgn;
ULONG i;
PRECT r;
if(!(rgn = RGNDATA_LockRgn(hRgn) ) )
return FALSE;
if(rgn->rdh.nCount > 0 && INRECT(rgn->rdh.rcBound, X, Y)){
r = (PRECT) rgn->Buffer;
for(i = 0; i < rgn->rdh.nCount; i++) {
if(INRECT(*(PRECT)&rgn->Buffer[i], X, Y)){
RGNDATA_UnlockRgn(hRgn);
return TRUE;
}
if(INRECT(*r, X, Y)){
RGNDATA_UnlockRgn(hRgn);
return TRUE;
}
r++;
}
}
RGNDATA_UnlockRgn(hRgn);