Check all Callouts function pointers for NULL before using them.
Don't load USER dll if not needed by the application.
diff --git a/objects/palette.c b/objects/palette.c
index 4655819..3a634aa 100644
--- a/objects/palette.c
+++ b/objects/palette.c
@@ -787,14 +787,16 @@
if (!(dc = DC_GetDCPtr( hDC ))) return 0;
size = dc->devCaps->sizePalette;
GDI_ReleaseObj( hDC );
- hWnd = Callout.WindowFromDC( hDC );
+ if (Callout.WindowFromDC)
+ {
+ hWnd = Callout.WindowFromDC( hDC );
- /* Docs say that we have to remap current drawable pixel by pixel
- * but it would take forever given the speed of XGet/PutPixel.
- */
- if (hWnd && size)
- Callout.RedrawWindow( hWnd, NULL, 0, RDW_INVALIDATE );
-
+ /* Docs say that we have to remap current drawable pixel by pixel
+ * but it would take forever given the speed of XGet/PutPixel.
+ */
+ if (hWnd && size)
+ Callout.RedrawWindow( hWnd, NULL, 0, RDW_INVALIDATE );
+ }
return 0x666;
}
