- wxWindow *parent = GetParent();
- while( parent && !parent->IsTopLevel() && parent->GetDefaultItem() == NULL ) {
- parent = parent->GetParent() ;
- }
- if ( parent && parent->GetDefaultItem() )
+ wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
+ if ( tlw && tlw->GetDefaultItem() )