func (v *TreeView) GetExpanderColumn() *TreeViewColumn {
	c := C.gtk_tree_view_get_expander_column(v.native())
	if c == nil {
		return nil
	}
	return wrapTreeViewColumn(glib.Take(unsafe.Pointer(c)))
}
func (v *TreeView) GetExpanderColumn() *TreeViewColumn {
	c := C.gtk_tree_view_get_expander_column(v.native())
	if c == nil {
		return nil
	}
	return wrapTreeViewColumn(glib.Take(unsafe.Pointer(c)))
}
// GetExpanderColumn is a wrapper around gtk_tree_view_get_expander_column().