We bake cookies in your browser for a better experience. Using this site means that you consent.Read More
We bake cookies in your browser for a better experience. Using this site means that you consent.Read More
TheQFocusEvent class contains event parameters for widget focus events.More...
| Header: | #include <QFocusEvent> |
| Inherits: | QEvent |
| QFocusEvent(Type type, Qt::FocusReason reason = Qt::OtherFocusReason) | |
| bool | gotFocus() const |
| bool | lostFocus() const |
| Qt::FocusReason | reason() const |
TheQFocusEvent class contains event parameters for widget focus events.
Focus events are sent to widgets when the keyboard input focus changes. Focus events occur due to mouse actions, key presses (such asTab orBacktab), the window system, popup menus, keyboard shortcuts, or other application-specific reasons. The reason for a particular focus event is returned byreason() in the appropriate event handler.
The event handlersQWidget::focusInEvent(),QWidget::focusOutEvent(),QGraphicsItem::focusInEvent andQGraphicsItem::focusOutEvent() receive focus events.
See alsoQWidget::setFocus(),QWidget::setFocusPolicy(), andKeyboard Focus.
Constructs a focus event object.
Thetype parameter must be eitherQEvent::FocusIn orQEvent::FocusOut. Thereason describes the cause of the change in focus.
Returns true iftype() isQEvent::FocusIn; otherwise returns false.
Returns true iftype() isQEvent::FocusOut; otherwise returns false.
Returns the reason for this focus event.
© 2016 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of theGNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.