The QFocusEvent class contains event parameters for widget focus events. ... Focus events are sent to widgets when the keyboard input focus changes. The event handlers QWidget::focusInEvent () and QWidget::focusOutEvent () receive focus events. ... Constructs a focus event object. ... Returns TRUE if the widget received the text input focus. Returns TRUE if the widget lost the text input focus. ... This file is part of the Qt toolkit , copyright 1995-98 Troll Tech , all rights reserved. ...