findButton = new QPushButton(tr("&Find"));
    findButton->setDefault(true);

    moreButton = new QPushButton(tr("&More"));
    moreButton->setCheckable(true);
    moreButton->setAutoDefault(false);

    buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
                                     | QDialogButtonBox::Cancel);

    connect(buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept);
    connect(buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);

Member Function Documentation

QDialogButtonBox::QDialogButtonBox(QWidget *parent = Q_NULLPTR)

Constructs an empty, horizontal button box with the given parent.

See also orientation and addButton().

QDialogButtonBox::QDialogButtonBox(Qt::Orientation orientation, QWidget *parent = Q_NULLPTR)

Constructs an empty button box with the given orientation and parent.

See also orientation and addButton().

QDialogButtonBox::QDialogButtonBox(StandardButtons buttons, QWidget *parent = Q_NULLPTR)

Constructs a horizontal button box with the given parent, containing the standard buttons specified by buttons.

This function was introduced in Qt 5.2.

See also orientation and addButton().

QDialogButtonBox::QDialogButtonBox(StandardButtons buttons, Qt::Orientation orientation, QWidget *parent = Q_NULLPTR)

Constructs a button box with the given orientation and parent, containing the standard buttons specified by buttons.

See also orientation and addButton().

QDialogButtonBox::~QDialogButtonBox()

Destroys the button box.

[signal] void QDialogButtonBox::accepted()

This signal is emitted when a button inside the button box is clicked, as long as it was defined with the AcceptRole or YesRole.

See also rejected(), clicked(), and helpRequested().

void QDialogButtonBox::addButton(QAbstractButton *button, ButtonRole role)

Adds the given button to the button box with the specified role. If the role is invalid, the button is not added.

If the button has already been added, it is removed and added again with the new role.

Note: The button box takes ownership of the button.

See also removeButton() and clear().

QPushButton *QDialogButtonBox::addButton(const QString &text, ButtonRole role)

Creates a push button with the given text, adds it to the button box for the specified role, and returns the corresponding push button. If role is invalid, no button is created, and zero is returned.

See also removeButton() and clear().

QPushButton *QDialogButtonBox::addButton(StandardButton button)

Adds a standard button to the button box if it is valid to do so, and returns a push button. If button is invalid, it is not added to the button box, and zero is returned.

See also removeButton() and clear().

QPushButton *QDialogButtonBox::button(StandardButton which) const

Returns the QPushButton corresponding to the standard button which, or 0 if the standard button doesn't exist in this button box.

See also standardButton(), standardButtons(), and buttons().

ButtonRole QDialogButtonBox::buttonRole(QAbstractButton *button) const

Returns the button role for the specified button. This function returns InvalidRole if button is 0 or has not been added to the button box.

See also buttons() and addButton().

QList<QAbstractButton *> QDialogButtonBox::buttons() const

Returns a list of all the buttons that have been added to the button box.

See also buttonRole(), addButton(), and removeButton().

[virtual protected] void QDialogButtonBox::changeEvent(QEvent *event)

Reimplemented from QWidget::changeEvent().

void QDialogButtonBox::clear()

Clears the button box, deleting all buttons within it.

See also removeButton() and addButton().

[signal] void QDialogButtonBox::clicked(QAbstractButton *button)

This signal is emitted when a button inside the button box is clicked. The specific button that was pressed is specified by button.

See also accepted(), rejected(), and helpRequested().

[virtual protected] bool QDialogButtonBox::event(QEvent *event)

Reimplemented from QObject::event().

[signal] void QDialogButtonBox::helpRequested()

This signal is emitted when a button inside the button box is clicked, as long as it was defined with the HelpRole.

See also accepted(), rejected(), and clicked().

[signal] void QDialogButtonBox::rejected()

This signal is emitted when a button inside the button box is clicked, as long as it was defined with the RejectRole or NoRole.

See also accepted(), helpRequested(), and clicked().

void QDialogButtonBox::removeButton(QAbstractButton *button)

Removes button from the button box without deleting it and sets its parent to zero.

See also clear(), buttons(), and addButton().

StandardButton QDialogButtonBox::standardButton(QAbstractButton *button) const

Returns the standard button enum value corresponding to the given button, or NoButton if the given button isn't a standard button.

See also button(), buttons(), and standardButtons().