func (v *Entry) GetInvisibleChar() rune {
	c := C.gtk_entry_get_invisible_char(v.native())
	return rune(c)
}
func (v *Entry) GetInvisibleChar() rune {
	c := C.gtk_entry_get_invisible_char(v.native())
	return rune(c)
}
// GetInvisibleChar() is a wrapper around gtk_entry_get_invisible_char().