func (v *AppChooserButton) SetHeading(heading string) {
	cstr := C.CString(heading)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_app_chooser_button_set_heading(v.native(), (*C.gchar)(cstr))
}
func (v *AppChooserButton) SetHeading(heading string) {
	cstr := C.CString(heading)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_app_chooser_button_set_heading(v.native(), (*C.gchar)(cstr))
}
// SetHeading() is a wrapper around gtk_app_chooser_button_set_heading().