- gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)), GTK_WINDOW (m_widget));
- gtk_window_set_transient_for (GTK_WINDOW (m_widget), GTK_WINDOW (toplevel));
+ GtkWidget *toplevel = gtk_widget_get_toplevel( parent->m_widget );
+ if (GTK_IS_WINDOW (toplevel))
+ {
+#if GTK_CHECK_VERSION(2,10,0)
+#ifndef __WXGTK3__
+ if (!gtk_check_version(2,10,0))
+#endif
+ {
+ gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)), GTK_WINDOW (m_widget));
+ }
+#endif
+ gtk_window_set_transient_for (GTK_WINDOW (m_widget), GTK_WINDOW (toplevel));
+ }
+ gtk_window_set_screen (GTK_WINDOW (m_widget), gtk_widget_get_screen (GTK_WIDGET (parent->m_widget)));