- Qt 6.9
- Qt Widgets
- C++ Classes
- QKeySequenceEdit
- Qt 6.9.0 Reference Documentation

# QKeySequenceEdit Class

The QKeySequenceEdit widget allows to input a QKeySequence. More...

Header: | `#include <QKeySequenceEdit>`
CMake: | `find_package(Qt6 REQUIRED COMPONENTS Widgets)` `target_link_libraries(mytarget PRIVATE Qt6::Widgets)`
qmake: | `QT += widgets`
Inherits: | QWidget

- List of all members, including inherited members

## Properties

- `(since 6.4)` clearButtonEnabled : bool
- `(since 6.5)` finishingKeyCombinations : QList<QKeyCombination>
- keySequence : QKeySequence
- `(since 6.5)` maximumSequenceLength : qsizetype

## Public Functions

| QKeySequenceEdit(QWidget *parent = nullptr)
| QKeySequenceEdit(const QKeySequence &keySequence, QWidget *parent = nullptr)
virtual | ~QKeySequenceEdit()
QList<QKeyCombination> | finishingKeyCombinations() const
bool | isClearButtonEnabled() const
QKeySequence | keySequence() const
qsizetype | maximumSequenceLength() const
void | setClearButtonEnabled(bool enable)
void | setFinishingKeyCombinations(const QList<QKeyCombination> &finishingKeyCombinations)

## Public Slots

void | clear()
void | setKeySequence(const QKeySequence &keySequence)
void | setMaximumSequenceLength(qsizetype count)

## Signals

void | editingFinished()
void | keySequenceChanged(const QKeySequence &keySequence)

## Reimplemented Protected Functions

virtual bool | event(QEvent *e) override
virtual void | focusOutEvent(QFocusEvent *e) override
virtual void | keyPressEvent(QKeyEvent *e) override
virtual void | keyReleaseEvent(QKeyEvent *e) override
virtual void | timerEvent(QTimerEvent *e) override

## Detailed Description

This widget lets the user choose a QKeySequence, which is usually used as a shortcut. The recording is initiated when the widget receives the focus and ends one second after the user releases the last key.

See also QKeySequenceEdit::keySequence.

## Property Documentation

### `[since 6.4]` clearButtonEnabled : bool

This property holds whether the key sequence edit displays a clear button when it is not empty.

If enabled, the key sequence edit displays a trailing clear button when it contains some text, otherwise the line edit does not show a clear button (the default).

This property was introduced in Qt 6.4.

Access functions:

bool | isClearButtonEnabled() const
void | setClearButtonEnabled(bool enable)

### `[since 6.5]` finishingKeyCombinations : QList<QKeyCombination>

This property holds the list of key combinations that finish editing the key sequences.

Any combination in the list will finish the editing of key sequences. All other key combinations can be recorded as part of a key sequence. By default, Qt::Key_Tab and Qt::Key_Backtab will finish recording the key sequence.

This property was introduced in Qt 6.5.

Access functions:

QList<QKeyCombination> | finishingKeyCombinations() const
void | setFinishingKeyCombinations(const QList<QKeyCombination> &finishingKeyCombinations)

### keySequence : QKeySequence

This property contains the currently chosen key sequence.

The shortcut can be changed by the user or via setter function.

Note: If the QKeySequence is longer than the maximumSequenceLength property, the key sequence is truncated.

Access functions:

QKeySequence | keySequence() const
void | setKeySequence(const QKeySequence &keySequence)

Notifier signal:

void | keySequenceChanged(const QKeySequence &keySequence)

### `[since 6.5]` maximumSequenceLength : qsizetype

This property holds the maximum sequence length.

The maximum number of key sequences a user can enter. The value needs to be between 1 and 4, with 4 being the default.

This property was introduced in Qt 6.5.

Access functions:

qsizetype | maximumSequenceLength() const
void | setMaximumSequenceLength(qsizetype count)

## Member Function Documentation

### `[explicit]` QKeySequenceEdit::QKeySequenceEdit(QWidget *parent = nullptr)

Constructs a QKeySequenceEdit widget with the given parent.

### `[explicit]` QKeySequenceEdit::QKeySequenceEdit(const QKeySequence &keySequence, QWidget *parent = nullptr)

Constructs a QKeySequenceEdit widget with the given keySequence and parent.

### `[virtual noexcept]` QKeySequenceEdit::~QKeySequenceEdit()

Destroys the QKeySequenceEdit object.

### `[slot]` void QKeySequenceEdit::clear()

Clears the current key sequence.

### `[signal]` void QKeySequenceEdit::editingFinished()

This signal is emitted when the user finishes entering the shortcut.

Note: there is a one second delay before releasing the last key and emitting this signal.

### `[override virtual protected]` bool QKeySequenceEdit::event(QEvent *e)

Reimplements: QWidget::event(QEvent *event).

### `[override virtual protected]` void QKeySequenceEdit::focusOutEvent(QFocusEvent *e)

Reimplements: QWidget::focusOutEvent(QFocusEvent *event).

### `[override virtual protected]` void QKeySequenceEdit::keyPressEvent(QKeyEvent *e)

Reimplements: QWidget::keyPressEvent(QKeyEvent *event).

### `[override virtual protected]` void QKeySequenceEdit::keyReleaseEvent(QKeyEvent *e)

Reimplements: QWidget::keyReleaseEvent(QKeyEvent *event).

### `[override virtual protected]` void QKeySequenceEdit::timerEvent(QTimerEvent *e)

Reimplements: QObject::timerEvent(QTimerEvent *event).