+ retval = FALSE;
+ }
+
+ // panel window class.
+ if ( !UnregisterClass(wxPanelClassName, wxhInstance) )
+ {
+ wxLogLastError(wxT("UnregisterClass(panel)"));
+
+ retval = FALSE;
+ }
+
+ // no redraw panel window class.
+ if ( !UnregisterClass(wxPanelClassNameNR, wxhInstance) )
+ {
+ wxLogLastError(wxT("UnregisterClass(no redraw panel)"));
+
+ retval = FALSE;
+ }
+
+ // canvas and textsubwindow class name
+ if ( !UnregisterClass(wxCanvasClassName, wxhInstance) )
+ {
+ wxLogLastError(wxT("UnregisterClass(canvas)"));
+
+ retval = FALSE;
+ }
+
+ if ( !UnregisterClass(wxCanvasClassNameNR, wxhInstance) )
+ {
+ wxLogLastError(wxT("UnregisterClass(no redraw canvas)"));
+
+ retval = FALSE;