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RedHat 9 (Linux i386) - man page for qcloseevent (redhat section 3qt)

QCloseEvent(3qt)								 QCloseEvent(3qt)

       QCloseEvent - Parameters that describe a close event

       #include <qevent.h>

       Inherits QEvent.

   Public Members
       QCloseEvent ()
       bool isAccepted () const
       void accept ()
       void ignore ()

       The QCloseEvent class contains parameters that describe a close event.

       Close events are sent to widgets that the user wants to close, usually by choosing "Close"
       from the window menu, or by clicking the `X' titlebar button. They are also sent when you
       call QWidget::close() to close a widget programmatically.

       Close events contain a flag that indicates whether the receiver wants the widget to be
       closed or not. When a widget accepts the close event, it is hidden (and destroyed if it
       was created with the WDestructiveClose flag). If it refuses to accept the close event
       nothing happens. (Under X11 it is possible that the window manager will forcibly close the
       window; but at the time of writing we are not aware of any window manager that does this.)

       The application's main widget -- QApplication::mainWidget() -- is a special case. When it
       accepts the close event, Qt leaves the main event loop and the application is immediately
       terminated (i.e. it returns from the call to QApplication::exec() in the main() function).

       The event handler QWidget::closeEvent() receives close events. The default implementation
       of this event handler accepts the close event. If you do not want your widget to be
       hidden, or want some special handing, you should reimplement the event handler.

       The closeEvent() in the Application Walkthrough shows a close event handler that asks
       whether to save a document before closing.

       If you want the widget to be deleted when it is closed, create it with the
       WDestructiveClose widget flag. This is very useful for independent top-level windows in a
       multi-window application.

       QObjects emits the destroyed() signal when they are deleted.

       If the last top-level window is closed, the QApplication::lastWindowClosed() signal is

       The isAccepted() function returns TRUE if the event's receiver has agreed to close the
       widget; call accept() to agree to close the widget and call ignore() if the receiver of
       this event does not want the widget to be closed.

       See also QWidget::close(), QWidget::hide(), QObject::destroyed(),
       QApplication::setMainWidget(), QApplication::lastWindowClosed(), QApplication::exec(),
       QApplication::quit(), and Event Classes.

QCloseEvent::QCloseEvent ()
       Constructs a close event object with the accept parameter flag set to FALSE.

       See also accept().

void QCloseEvent::accept ()
       Sets the accept flag of the close event object.

       Setting the accept flag indicates that the receiver of this event agrees to close the

       The accept flag is not set by default.

       If you choose to accept in QWidget::closeEvent(), the widget will be hidden. If the
       widget's WDestructiveClose flag is set, it will also be destroyed.

       See also ignore() and QWidget::hide().


void QCloseEvent::ignore ()
       Clears the accept flag of the close event object.

       Clearing the accept flag indicates that the receiver of this event does not want the
       widget to be closed.

       The close event is constructed with the accept flag cleared.

       See also accept().


bool QCloseEvent::isAccepted () const
       Returns TRUE if the receiver of the event has agreed to close the widget; otherwise
       returns FALSE.

       See also accept() and ignore().

       http://doc.trolltech.com/qcloseevent.html http://www.trolltech.com/faq/tech.html

       Copyright 1992-2001 Trolltech AS, http://www.trolltech.com.  See the license file included
       in the distribution for a complete license statement.

       Generated automatically from the source code.

       If you find a bug in Qt, please report it as described in
       http://doc.trolltech.com/bughowto.html.	Good bug reports help us to help you. Thank you.

       The definitive Qt documentation is provided in HTML format; it is located at
       $QTDIR/doc/html and can be read using Qt Assistant or with a web browser. This man page is
       provided as a convenience for those users who prefer man pages, although this format is
       not officially supported by Trolltech.

       If you find errors in this manual page, please report them to qt-bugs@trolltech.com.
       Please include the name of the manual page (qcloseevent.3qt) and the Qt version (3.1.1).

Trolltech AS				 9 December 2002			 QCloseEvent(3qt)

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