Free cache DCEs if the DC gets deleted.

objects/dc.c

@@ -745,7 +745,7 @@ BOOL WINAPI DeleteDC( HDC hdc )
             DWORD data = dc->dwHookData;
             GDI_ReleaseObj( hdc );
             if (!proc( hdc, DCHC_DELETEDC, data, 0 )) return FALSE;
-            if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
+            if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
         }
     }
 

windows/dce.c

@@ -623,6 +623,7 @@ BOOL16 WINAPI DCHook16( HDC16 hDC, WORD code, DWORD data, LPARAM lParam )
                WARN("Application trying to delete a busy DC\n");
                retv = FALSE;
            }
+           else DCE_FreeDCE( dce );
 	   break;
 
       default: