QFocusEvent Class▲
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Header: QFocusEvent
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CMake:
find_package(Qt6 REQUIRED COMPONENTS Gui)
target_link_libraries(mytarget PRIVATE Qt6::Gui)
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qmake: QT += gui
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Inherits: QEvent
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Group: QFocusEvent is part of events
Detailed Description▲
Focus events are sent to widgets when the keyboard input focus changes. Focus events occur due to mouse actions, key presses (such as Tab or Backtab), the window system, popup menus, keyboard shortcuts, or other application-specific reasons. The reason for a particular focus event is returned by reason() in the appropriate event handler.
The event handlers QWidget::focusInEvent(), QWidget::focusOutEvent(), QGraphicsItem::focusInEvent and QGraphicsItem::focusOutEvent() receive focus events.
See Also▲
See also QWidget::setFocus(), QWidget::setFocusPolicy(), Keyboard Focus in Widgets
Member Function Documentation▲
[explicit] QFocusEvent::QFocusEvent(QEvent::Type type, Qt::FocusReason reason = Qt::OtherFocusReason)▲
Constructs a focus event object.
The type parameter must be either QEvent::FocusIn or QEvent::FocusOut. The reason describes the cause of the change in focus.
bool QFocusEvent::gotFocus() const▲
Returns true if type() is QEvent::FocusIn; otherwise returns false.
bool QFocusEvent::lostFocus() const▲
Returns true if type() is QEvent::FocusOut; otherwise returns false.
Qt::FocusReason QFocusEvent::reason() const▲
Returns the reason for this focus event.