+void wxTopLevelWindowGTK::AddGrab()
+{
+ if (!m_grabbed)
+ {
+ m_grabbed = TRUE;
+ gtk_grab_add( m_widget );
+ gtk_main();
+ gtk_grab_remove( m_widget );
+ }
+}
+
+void wxTopLevelWindowGTK::RemoveGrab()
+{
+ if (m_grabbed)
+ {
+ gtk_main_quit();
+ m_grabbed = FALSE;
+ }
+}
+
+
+// helper
+static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
+{
+ if (window)
+ {
+ if (region.IsEmpty())
+ {
+ gdk_window_shape_combine_mask(window, NULL, 0, 0);
+ }
+ else
+ {
+#ifdef __WXGTK20__
+ gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
+#else
+ wxBitmap bmp = region.ConvertToBitmap();
+ bmp.SetMask(new wxMask(bmp, *wxBLACK));
+ GdkBitmap* mask = bmp.GetMask()->GetBitmap();
+ gdk_window_shape_combine_mask(window, mask, 0, 0);
+#endif
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+
+bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
+{
+ wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
+ _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
+
+ GdkWindow *window = NULL;
+ if (m_wxwindow)
+ {
+ window = GTK_PIZZA(m_wxwindow)->bin_window;
+ do_shape_combine_region(window, region);
+ }
+ window = m_widget->window;
+ return do_shape_combine_region(window, region);
+}
+
+bool wxTopLevelWindowGTK::IsActive()
+{
+ return (this == (wxTopLevelWindowGTK*)g_activeFrame);
+}
+