+ column = gtk_tree_view_column_new();
+ gtk_tree_view_append_column(GTK_TREE_VIEW(treewidget), column);
+#ifdef __WXGTK3__
+ s_other_button = gtk_tree_view_column_get_button(column);
+#else
+ s_other_button = column->button;
+#endif
+
+ column = gtk_tree_view_column_new();
+ gtk_tree_view_append_column(GTK_TREE_VIEW(treewidget), column);
+#ifdef __WXGTK3__
+ s_last_button = gtk_tree_view_column_get_button(column);
+#else
+ s_last_button = column->button;
+#endif
+}
+
+GtkWidget *GetHeaderButtonWidgetFirst()
+{
+ if (!s_first_button)
+ CreateHeaderButtons();
+
+ return s_first_button;
+}
+
+GtkWidget *GetHeaderButtonWidgetLast()
+{
+ if (!s_last_button)
+ CreateHeaderButtons();
+
+ return s_last_button;
+}
+
+GtkWidget *GetHeaderButtonWidget()
+{
+ if (!s_other_button)
+ CreateHeaderButtons();
+
+ return s_other_button;