gtk/gtk.go
func (v *Editable) DeleteText(startPos, endPos int) {
	C.gtk_editable_delete_text(v.native(), C.gint(startPos), C.gint(endPos))
}
func (v *Editable) DeleteText(startPos, endPos int) {
	C.gtk_editable_delete_text(v.native(), C.gint(startPos), C.gint(endPos))
}
// DeleteText is a wrapper around gtk_editable_delete_text().