GetUpdateRect should return client coordinates unless the window was
created with the CS_OWNDC style and the mapping mode is not MM_TEXT,
in which case the result should be in logical coordinates.
diff --git a/windows/painting.c b/windows/painting.c
index c8c282c..1f7f89b 100644
--- a/windows/painting.c
+++ b/windows/painting.c
@@ -643,6 +643,13 @@
if (GetUpdateRgn32( hwnd, hrgn, erase ) == ERROR) return FALSE;
GetRgnBox32( hrgn, rect );
DeleteObject32( hrgn );
+ if (wndPtr->class->style & CS_OWNDC)
+ {
+ if (GetMapMode32(wndPtr->dce->hDC) != MM_TEXT)
+ {
+ DPtoLP32 (wndPtr->dce->hDC, (LPPOINT32)rect, 2);
+ }
+ }
}
else SetRectEmpty32( rect );
}
