Qt 5.7 | Qt 3D | C++ Classes | QKeyEvent

Qt 5.7.1 Reference Documentation

# QKeyEvent Class

(Qt3DInput::QKeyEvent)

QKeyEvent event type send by KeyBoardHandler. More...

Header: | #include <QKeyEvent>
qmake: | QT += 3dinput
Since: | Qt 5.5
Instantiated By: | KeyEvent

- List of all members, including inherited members

## Properties

- accepted : bool
- count : const int
- isAutoRepeat : const bool
- key : const int

- modifiers : const int
- nativeScanCode : const quint32
- text : const QString

## Public Functions

| QKeyEvent(QEvent::Type type, int key, Qt::KeyboardModifiers modifiers, const QString &text = QString(), bool autorep = false, ushort count = 1)
| QKeyEvent(const QKeyEvent &ke)
int | count() const
bool | isAccepted() const
bool | isAutoRepeat() const
int | key() const
bool | matches(QKeySequence::StandardKey key_) const
int | modifiers() const
quint32 | nativeScanCode() const
void | setAccepted(bool accepted)
QString | text() const
QEvent::Type | type() const

## Related Non-Members

typedef | QKeyEventPtr

## Detailed Description

QKeyEvent event type send by KeyBoardHandler.

Contains parameters that describe a key event

## Property Documentation

### accepted : bool

Setting accepted to `true` prevents the key event from being propagated to the item's parent.

Generally, if the item acts on the key event then it should be accepted so that ancestor items do not also respond to the same event.

Access functions:

bool | isAccepted() const
void | setAccepted(bool accepted)

### count : const int

Holds the number of keys involved in this event. If text is not empty, this is simply the length of the string.

Access functions:

int | count() const

### isAutoRepeat : const bool

Holds whether this event comes from an auto-repeating key.

Access functions:

bool | isAutoRepeat() const

### key : const int

This property holds the code of the key that was pressed or released.

See Qt.Key for the list of keyboard codes.

Access functions:

int | key() const

See also QKeyEvent::key.

### modifiers : const int

This property holds the keyboard modifier flags that existed immediately before the event occurred.

Access functions:

int | modifiers() const

See also QKeyEvent::modifiers.

### nativeScanCode : const quint32

This property contains the native scan code of the key that was pressed. It is passed through from QKeyEvent unchanged.

Access functions:

quint32 | nativeScanCode() const

### text : const QString

This property holds the Unicode text that the key generated. The text returned can be an empty string in cases where modifier keys, such as Shift, Control, Alt, and Meta, are being pressed or released. In such cases key will contain a valid value.

Access functions:

QString | text() const

## Member Function Documentation

### QKeyEvent::QKeyEvent(QEvent::Type type, int key, Qt::KeyboardModifiers modifiers, const QString &text = QString(), bool autorep = false, ushort count = 1)

Default constructs an instance of QKeyEvent.

### QKeyEvent::QKeyEvent(const QKeyEvent &ke)

Copy constructor.

### bool QKeyEvent::matches(QKeySequence::StandardKey key_) const

Returns `true` if the key event matches the given standard key key_; otherwise returns `false`.

See also QKeySequence::StandardKey.

### QEvent::Type QKeyEvent::type() const

Returns the type of event

## Related Non-Members

### typedef Qt3DInput::QKeyEventPtr

A shared pointer for QKeyEvent.