gdi32: Avoid leaking a handle in MFDRV_ExtSelectClipRgn.

dlls/gdi32/mfdrv/graphics.c

@@ -420,6 +420,7 @@ INT MFDRV_ExtSelectClipRgn( PHYSDEV dev, HRGN hrgn, INT mode )
     if(iRgn == -1) return ERROR;
     ret = MFDRV_MetaParam1( dev, META_SELECTCLIPREGION, iRgn ) ? NULLREGION : ERROR;
     MFDRV_MetaParam1( dev, META_DELETEOBJECT, iRgn );
+    MFDRV_RemoveHandle( dev, iRgn );
     return ret;
 }
 

dlls/gdi32/mfdrv/metafiledrv.h

@@ -56,6 +56,7 @@ extern BOOL MFDRV_MetaParam8(PHYSDEV dev, short func, short param1, short param2
                              short param6, short param7, short param8);
 extern BOOL MFDRV_WriteRecord(PHYSDEV dev, METARECORD *mr, DWORD rlen);
 extern UINT MFDRV_AddHandle( PHYSDEV dev, HGDIOBJ obj );
+extern BOOL MFDRV_RemoveHandle( PHYSDEV dev, UINT index );
 extern INT16 MFDRV_CreateBrushIndirect( PHYSDEV dev, HBRUSH hBrush );
 
 /* Metafile driver functions */

dlls/gdi32/mfdrv/objects.c

@@ -59,6 +59,23 @@ UINT MFDRV_AddHandle( PHYSDEV dev, HGDIOBJ obj )
 }
 
 /******************************************************************
+ *         MFDRV_RemoveHandle
+ */
+BOOL MFDRV_RemoveHandle( PHYSDEV dev, UINT index )
+{
+    METAFILEDRV_PDEVICE *physDev = (METAFILEDRV_PDEVICE *)dev;
+    BOOL ret = FALSE;
+
+    if (index < physDev->handles_size && physDev->handles[index])
+    {
+        physDev->handles[index] = 0;
+        physDev->cur_handles--;
+        ret = TRUE;
+    }
+    return ret;
+}
+
+/******************************************************************
  *         MFDRV_FindObject
  */
 static INT16 MFDRV_FindObject( PHYSDEV dev, HGDIOBJ obj )