- rectangle_from_range (sheet, &sheet->range, &area);
- area.x++;
- area.y++;
- gdk_window_invalidate_rect (sheet->sheet_window, &area, FALSE);
+ if (sheet->sheet_window != NULL)
+ {
+ GdkRectangle area;
+
+ rectangle_from_range (sheet, &sheet->range, &area);
+ area.x++;
+ area.y++;
+ gdk_window_invalidate_rect (sheet->sheet_window, &area, FALSE);
+ }