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BUGFIX: unhandled error conditions IntGdiCreateDC()

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svn path=/trunk/; revision=12073
This commit is contained in:
Royce Mitchell III 2004-12-13 05:23:59 +00:00
parent 6298e65633
commit d2b0c045cd
1 changed files with 12 additions and 2 deletions
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14
reactos/subsys/win32k/objects/dc.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: dc.c,v 1.152 2004/12/12 21:58:42 royce Exp $
/* $Id: dc.c,v 1.153 2004/12/13 05:23:59 royce Exp $
*
* DC.C - Device context functions
*
@ -738,7 +738,11 @@ IntGdiCreateDC(PUNICODE_STRING Driver,
NewDC = DC_LockDc( hNewDC );
/* FIXME - NewDC can be NULL!!! Don't assert here! */
ASSERT( NewDC );
if ( !NewDC )
{
DC_FreeDC( hNewDC );
return NULL;
}
NewDC->DMW = PrimarySurface.DMW;
NewDC->DevInfo = &PrimarySurface.DevInfo;
@ -757,6 +761,12 @@ IntGdiCreateDC(PUNICODE_STRING Driver,
NewDC->DMW.dmLogPixels = 96;
SurfObj = EngLockSurface((HSURF)PrimarySurface.Handle);
if ( !SurfObj )
{
DC_UnlockDc ( hNewDC );
DC_FreeDC ( hNewDC) ;
return NULL;
}
NewDC->DMW.dmBitsPerPel = BitsPerFormat(SurfObj->iBitmapFormat);
NewDC->DMW.dmPelsWidth = SurfObj->sizlBitmap.cx;
NewDC->DMW.dmPelsHeight = SurfObj->sizlBitmap.cy;