gtk/gtk.go
func (v *Grid) InsertColumn(position int) {
	C.gtk_grid_insert_column(v.native(), C.gint(position))
}
func (v *Grid) InsertColumn(position int) {
	C.gtk_grid_insert_column(v.native(), C.gint(position))
}
// InsertColumn() is a wrapper around gtk_grid_insert_column().