if ( !GetParent() && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
{
wxWindow *parent = wxTheApp->GetTopWindow();
- if ( parent && parent != this )
+ if ( parent && parent != this && parent->IsBeingDeleted() )
{
m_parent = parent;
gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(parent->m_widget) );