gtk/tree_view.go
func (v *TreeView) GetColumn(n int) *TreeViewColumn {
	c := C.gtk_tree_view_get_column(v.native(), C.gint(n))
	if c == nil {
		return nil
	}
	return wrapTreeViewColumn(glib.Take(unsafe.Pointer(c)))
}
func (v *TreeView) GetColumn(n int) *TreeViewColumn {
	c := C.gtk_tree_view_get_column(v.native(), C.gint(n))
	if c == nil {
		return nil
	}
	return wrapTreeViewColumn(glib.Take(unsafe.Pointer(c)))
}
// GetColumn is a wrapper around gtk_tree_view_get_column().