+// This handler is required to allow the toolbar to be set to a non-default
+// colour: for example, when it must blend in with a notebook page.
+void wxToolBar::OnEraseBackground(wxEraseEvent& event)
+{
+ RECT rect = wxGetClientRect(GetHwnd());
+ HDC hdc = GetHdcOf((*event.GetDC()));
+
+ if ( UseBgCol() )
+ {
+ // do draw our background
+ //
+ // notice that this 'dumb' implementation may cause flicker for some of
+ // the controls in which case they should intercept wxEraseEvent and
+ // process it themselves somehow
+ AutoHBRUSH hBrush(wxColourToRGB(GetBackgroundColour()));
+
+ wxCHANGE_HDC_MAP_MODE(hdc, MM_TEXT);
+ ::FillRect(hdc, &rect, hBrush);
+ }
+ else // we have no non default background colour
+ {
+#if wxUSE_UXTHEME
+ // we may need to draw themed colour so that we appear correctly on
+ // e.g. notebook page under XP with themes but only do it if the parent
+ // draws themed background itself
+ if ( !GetParent()->UseBgCol() )
+ {
+ wxUxThemeEngine *theme = wxUxThemeEngine::GetIfActive();
+ if ( theme )
+ {
+ HRESULT
+ hr = theme->DrawThemeParentBackground(GetHwnd(), hdc, &rect);
+ if ( SUCCEEDED(hr) )
+ return;
+
+ wxLogApiError(_T("DrawThemeParentBackground(toolbar)"), hr);
+ }
+ }
+#endif // wxUSE_UXTHEME
+
+ event.Skip();
+ return;
+ }
+}
+