gtk/combo_box.go
func (v *ComboBoxText) AppendText(text string) {
	cstr := C.CString(text)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_combo_box_text_append_text(v.native(), (*C.gchar)(cstr))
}
func (v *ComboBoxText) AppendText(text string) {
	cstr := C.CString(text)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_combo_box_text_append_text(v.native(), (*C.gchar)(cstr))
}
// AppendText is a wrapper around gtk_combo_box_text_append_text().