Hold a reference on m_widget for the life of the associated wxWindow object.

This allows removing some ugly hacks, and leaking of GtkWidgets by wxNotebook.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@55288 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/popupwin.cpp

@@ -154,6 +154,7 @@ bool wxPopupWindow::Create( wxWindow *parent, int style )
     m_insertCallback = wxInsertChildInPopupWin;
 
     m_widget = gtk_window_new( GTK_WINDOW_POPUP );
+    g_object_ref(m_widget);
 
     if ((m_parent) && (GTK_IS_WINDOW(m_parent->m_widget)))
         gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(m_parent->m_widget) );