· Page d'accueil · Toutes les classes · Classes principales · Annotées · Classes groupées · Modules · Fonctions ·

QFocusEvent Class

The QFocusEvent class contains event parameters for widget focus events. More...

 #include <QFocusEvent>

Inherits: QEvent.

List of all members, including inherited members

Public Functions

	QFocusEvent(Type type, Qt::FocusReason reason = Qt::OtherFocusReason)
bool	gotFocus() const
bool	lostFocus() const
Qt::FocusReason	reason() const

6 public functions inherited from QEvent

Additional Inherited Members

1 property inherited from QEvent
1 static public member inherited from QEvent

Detailed Description

The QFocusEvent 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 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 QWidget::setFocus(), QWidget::setFocusPolicy(), and Keyboard Focus.

Member Function Documentation

QFocusEvent::QFocusEvent(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.

The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation.

Documentation sources may be obtained from www.qt-project.org.

Nokia, Qt and their respective logos are trademarks of Nokia Corporation in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. Privacy Policy

Cette page est une traduction d'une page de la documentation de Qt, écrite par Nokia Corporation and/or its subsidiary(-ies). Les éventuels problèmes résultant d'une mauvaise traduction ne sont pas imputables à Nokia.	Qt 5.0-snapshot
Copyright © 2012 Developpez LLC. Tous droits réservés Developpez LLC. Aucune reproduction, même partielle, ne peut être faite de ce site et de l'ensemble de son contenu : textes, documents et images sans l'autorisation expresse de Developpez LLC. Sinon, vous encourez selon la loi jusqu'à 3 ans de prison et jusqu'à 300 000 E de dommages et intérêts. Cette page est déposée à la SACD.
Vous avez déniché une erreur ? Un bug ? Une redirection cassée ? Ou tout autre problème, quel qu'il soit ? Ou bien vous désirez participer à ce projet de traduction ? N'hésitez pas à nous contacter ou par MP !