gtk/tree_view_column.go
func (v *TreeViewColumn) GetExpand() bool {
	c := C.gtk_tree_view_column_get_expand(v.native())
	return gobool(c)
}
func (v *TreeViewColumn) GetExpand() bool {
	c := C.gtk_tree_view_column_get_expand(v.native())
	return gobool(c)
}
// GetExpand() is a wrapper around gtk_tree_view_column_get_expand().