accept operation fail in release mode

[yangyanhui4]

hi,I use accept to close a QWIDGET. It works well in debug mode,but in release mode ,it will not disappear

[JonB]

@yangyanhui4
This is nowhere near enough of a description. Supply a minimal reproducible example --- not just huge code! --- if you want someone to look at it.

[yangyanhui4]

class MessageReminder : public QDialog
{
Q_OBJECT

public:
explicit MessageReminder(QString text, int duration,QWidget* parent = 0);
~MessageReminder();
protected:
// 双击关闭窗口
void mouseDoubleClickEvent(QMouseEvent* event);
private slots:
void onTimeupDestroy();
private:
Ui::MessageReminder* ui;

QTimer* remainTimer;

};

MessageReminder::MessageReminder(QString text, int duration, QWidget* parent) :
QDialog(parent),
ui(new Ui::MessageReminder)
{
ui->setupUi(this);
this->setWindowFlags(Qt::FramelessWindowHint
| Qt::Tool
| Qt::WindowStaysOnTopHint);
//设置属性：关闭即销毁
this->setAttribute(Qt::WA_DeleteOnClose);
//让QLabel自适应text的大小
ui->label->adjustSize();
//让QLabel能够自动判断并换行显示：
//ui->label->setGeometry(QRect(328, 240, 329, 27 * 4)); //四倍行距
ui->label->setWordWrap(true);
//ui->label->setAlignment(Qt::AlignTop);
//text为要显示的信息
ui->label->setText(text);
ui->horizontalLayout->setSizeConstraint(QLayout::SetFixedSize);
//设置定时器，到时关闭弹框
remainTimer = new QTimer(this);
remainTimer->start(duration * 1000);
remainTimer->setSingleShot(true);//仅触发一次
connect(remainTimer, SIGNAL(timeout()), this, SLOT(onTimeupDestroy()));
}

MessageReminder::~MessageReminder()
{
delete ui;
delete remainTimer;
}

void MessageReminder::onTimeupDestroy() {
//this->close();
this->accept();
}
void MessageReminder::mouseDoubleClickEvent(QMouseEvent* event)
{
onTimeupDestroy();
}

this is core code, I use this->accept to close the window,but it makes no sense in release mode

[JonB]

@yangyanhui4
But why do you attempt to use this->accept() here? That is for using in an override of closeEvent(). You do not have such an overridden method. You have a slot onTimeupDestroy(), which is called either from a timer signal or from a mouse double click event. Show me where the docs state anything about using QWidget::accept() from either of these?

Your commented-out this->close(); looks closer to what you should have.

[J.Hilk]

@JonB said in accept operation fail in release mode:

QWidget::accept()

QDialog::accept() technically exists :)

[JonB]

@J-Hilk
OK, I didn't notice OP was using QDialog rather than QWidget. The OP's question read:

I use accept to close a QWIDGET

@yangyanhui4
How are you invoking this MessageReminder then? Are you calling QDialog::exec()?