CODEWITHSUNDEEP
c++qt
Nyaruko
Nyaruko

Reputation: 4499

How to delete a window?

I used the following command to create and show a window:

QGCSettingsWidget* settings = new QGCSettingsWidget(this);//here this means the mainwindow
settings->show();

The constructor is like:

QGCSettingsWidget::QGCSettingsWidget(QWidget *parent, Qt::WindowFlags flags) :
    QDialog(parent, flags),
    mainWindow((MainWindow*)parent),
    ui(new Ui::QGCSettingsWidget)
{
    ui->setupUi(this);
    ....
    MAVLinkSettingsWidget* msettings = new MAVLinkSettingsWidget(mavlink, this);//set its parent to be this.
}

The deconstructor is:

QGCSettingsWidget::~QGCSettingsWidget()
{
    delete ui;
}

However, I found that when I click the close button of the created window. Although the window disappear, the msettings is not destructed. How could I make it properly deleted?

Upvotes: 0

Views: 123

Answers (1)

Ezee
Ezee

Reputation: 4344

When you close a window it is not destroyed but hides if you didn't set an attribute WA_DeleteOnClose: 

settings->setAttribute(Qt::WA_DeleteOnClose);
settings->show();

Upvotes: 1

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