func echoChanged(echoLineEdit *widgets.QLineEdit, index int) { switch index { case 0: echoLineEdit.SetEchoMode(widgets.QLineEdit__Normal) case 1: echoLineEdit.SetEchoMode(widgets.QLineEdit__Password) case 2: echoLineEdit.SetEchoMode(widgets.QLineEdit__PasswordEchoOnEdit) case 3: echoLineEdit.SetEchoMode(widgets.QLineEdit__NoEcho) } }