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106 lines
5.2 KiB
106 lines
5.2 KiB
14 years ago
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/dialogs/qerrormessage.cpp:76 -->
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<title>QErrorMessage Class</title>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QErrorMessage Class Reference</h1>
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<p>The QErrorMessage class provides an error message display dialog.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qerrormessage-h.html">qerrormessage.h</a>></tt>
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<p>Inherits <a href="qdialog.html">QDialog</a>.
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<p><a href="qerrormessage-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#QErrorMessage"><b>QErrorMessage</b></a> ( QWidget * parent, const char * name = 0 )</li>
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<li class=fn><a href="#~QErrorMessage"><b>~QErrorMessage</b></a> ()</li>
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</ul>
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<h2>Public Slots</h2>
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<ul>
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<li class=fn>void <a href="#message"><b>message</b></a> ( const QString & m )</li>
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</ul>
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<h2>Static Public Members</h2>
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<ul>
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<li class=fn>QErrorMessage * <a href="#qtHandler"><b>qtHandler</b></a> ()</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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<p> The QErrorMessage class provides an error message display dialog.
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<p>
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<p> This is basically a <a href="qlabel.html">QLabel</a> and a "show this message again" checkbox which
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remembers what not to show.
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<p> There are two ways to use this class:
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<ol type=1>
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<li> For production applications. In this context the class can be used to
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display messages which you don't need the user to see more than once. To use
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QErrorMessage like this, you create the dialog in the usual way and call the
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<a href="#message">message</a>() slot, or connect signals to it.
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<p> <li> For developers. In this context the static <a href="#qtHandler">qtHandler</a>() installs
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a message handler using <a href="qapplication.html#qInstallMsgHandler">qInstallMsgHandler</a>() and creates a QErrorMessage
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that displays <a href="qapplication.html#qDebug">qDebug</a>(), <a href="qapplication.html#qWarning">qWarning</a>() and <a href="qapplication.html#qFatal">qFatal</a>() messages.
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</ol>
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<p> In both cases QErrorMessage will queue pending messages, and display
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them (or not) in order, as soon as the user presses Enter or clicks OK
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after seeing each message.
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<p> <center><img src="qerrormessage.png"></center>
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<p> <p>See also <a href="qmessagebox.html">QMessageBox</a>, <a href="qstatusbar.html#message">QStatusBar::message</a>(), <a href="dialogs.html">Dialog Classes</a>, and <a href="misc.html">Miscellaneous Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="QErrorMessage"></a>QErrorMessage::QErrorMessage ( <a href="qwidget.html">QWidget</a> * parent, const char * name = 0 )
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</h3> Constructs and installs an error handler window.
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The parent <em>parent</em> and name <em>name</em> are passed on to the <a href="qdialog.html">QDialog</a>
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constructor.
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<h3 class=fn><a name="~QErrorMessage"></a>QErrorMessage::~QErrorMessage ()
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</h3> Destroys the object and frees any allocated resources. Notably,
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the list of "do not show again" messages is deleted.
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<h3 class=fn>void <a name="message"></a>QErrorMessage::message ( const <a href="qstring.html">QString</a> & m )<tt> [slot]</tt>
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</h3> Shows message <em>m</em> and returns immediately. If the user has requested
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that <em>m</em> not be shown, this function does nothing.
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<p> Normally, <em>m</em> is shown at once, but if there are pending messages,
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<em>m</em> is queued for later display.
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<h3 class=fn><a href="qerrormessage.html">QErrorMessage</a> * <a name="qtHandler"></a>QErrorMessage::qtHandler ()<tt> [static]</tt>
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</h3> Returns a pointer to a QErrorMessage object that outputs the
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default Qt messages. This function creates such an object, if there
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isn't one already.
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">Qt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>Qt 3.3.8</div>
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</table></div></address></body>
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