+ // update the sizes of stretchable spacers to consume all extra space we
+ // have
+ void UpdateStretchableSpacersSize();
+
+#ifdef wxHAS_MSW_BACKGROUND_ERASE_HOOK
+ // do erase the toolbar background, always do it for the entire control as
+ // the caller sets the clipping region correctly to exclude parts which
+ // should not be erased
+ void MSWDoEraseBackground(WXHDC hDC);
+
+ // return the brush to use for erasing the toolbar background
+ WXHBRUSH MSWGetToolbarBgBrush();
+#endif // wxHAS_MSW_BACKGROUND_ERASE_HOOK
+