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</style></head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr /><td align="left" valign="top" width="32"><img align="left" border="0" height="32" src="images/rb-logo.png" width="32" /></td><td width="1">  </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a></td></table><h1 align="center">QCloseEvent Class Reference<br /><sup><sup>[<a href="qtgui.html">QtGui</a> module]</sup></sup></h1><p>The QCloseEvent class contains parameters that describe a close
event. <a href="#details">More...</a></p>
<p>Inherits <a href="qevent.html">QEvent</a>.</p><h3>Methods</h3><ul><li><div class="fn" /><b><a href="qcloseevent.html#QCloseEvent">__init__</a></b> (<i>self</i>)</li><li><div class="fn" /><b><a href="qcloseevent.html#QCloseEvent-2">__init__</a></b> (<i>self</i>, QCloseEvent)</li></ul><a name="details" /><hr /><h2>Detailed Description</h2><p>The QCloseEvent class contains parameters that describe a close
event.</p>
<p>Close events are sent to widgets that the user wants to close,
usually by choosing "Close" from the window menu, or by clicking
the <b>X</b> title bar button. They are also sent when you call
<a href="qwidget.html#close">QWidget.close</a>() to close a widget
programmatically.</p>
<p>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
<a href="qt.html#WidgetAttribute-enum">Qt.WA_DeleteOnClose</a>
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.)</p>
<p>The event handler <a href="qwidget.html#closeEvent">QWidget.closeEvent</a>() 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
and <a href="qevent.html#ignore">ignore</a>() the event.</p>
<p>The <a href="mainwindows-application.html#close-event-handler">closeEvent() in
the Application example</a> shows a close event handler that asks
whether to save a document before closing.</p>
<p>If you want the widget to be deleted when it is closed, create
it with the <a href="qt.html#WidgetAttribute-enum">Qt.WA_DeleteOnClose</a> flag. This
is very useful for independent top-level windows in a multi-window
application.</p>
<p><a href="qobject.html">QObject</a>s emits the <a href="qobject.html#destroyed">destroyed()</a> signal when they are
deleted.</p>
<p>If the last top-level window is closed, the <a href="qapplication.html#lastWindowClosed">QApplication.lastWindowClosed</a>()
signal is emitted.</p>
<p>The <a href="qevent.html#accepted-prop">isAccepted</a>()
function returns true if the event's receiver has agreed to close
the widget; call <a href="qevent.html#accept">accept</a>() to agree
to close the widget and call <a href="qevent.html#ignore">ignore</a>() if the receiver of this event
does not want the widget to be closed.</p>
<hr /><h2>Method Documentation</h2><h3 class="fn"><a name="QCloseEvent" />QCloseEvent.__init__ (<i>self</i>)</h3><p>Constructs a close event object.</p>
<p><b>See also</b> <a href="qevent.html#accept">accept</a>().</p>
<h3 class="fn"><a name="QCloseEvent-2" />QCloseEvent.__init__ (<i>self</i>, <a href="qcloseevent.html">QCloseEvent</a>)</h3><address><hr /><div align="center"><table border="0" cellspacing="0" width="100%"><tr class="address"><td align="left" width="25%">PyQt 4.10.3 for X11</td><td align="center" width="50%">Copyright © <a href="http://www.riverbankcomputing.com">Riverbank Computing Ltd</a> and <a href="http://www.qtsoftware.com">Nokia</a> 2012</td><td align="right" width="25%">Qt 4.8.5</td></tr></table></div></address></body></html>
