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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- /home/edba/dist/qtopia/main-Sunday/qtopia/src/libraries/qtopia2/qdl.cpp:797 --><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>QDLClient Class</title><style type="text/css"><!--h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }a:link { color: #004faf; text-decoration: none }a:visited { color: #672967; text-decoration: none }body { background: #ffffff; color: black; }--></style></head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td width="200" align="left" valign="top"><a href="index.html"><img height="27" width="472" src="dochead.png" border="0"></a><br><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" align="center" size=32>Qtopia</font> <a href="index.html">Home</a> - <a href="qtopiaclasses.html">Classes</a> - <a href="qtopiaannotated.html">Annotated</a> - <a href="qtopiafunctions.html">Functions</a> - <a href="qtindex.html">Qt Embedded</a></td><td align="right" valign="top"> <table border="0" cellpadding="0" cellspacing="0" width="137"> <tr> <td><a href="http://www.trolltech.com/company/about/trolls.html"><img height="100" width="100" src="face.png" border="0"></a></td> <td><img height="100" width="100" src="qtlogo.png" align="top" border="0"></td> </tr> </table></td></tr></table><h1 align=center>QDLClient Class Reference</h1><p>The QDLClient class provides a set of links and communication with a data source.<a href="#details">More...</a><p><tt>#include <<a href="qdl-h.html">qdl.h</a>></tt><p>Inherited by <a href="qdlwidgetclient.html">QDLWidgetClient</a>.<p><a href="qdlclient-members.html">List of all member functions.</a><h2>Public Members</h2><ul><li><div class=fn><a href="#QDLClient"><b>QDLClient</b></a> ( QObject * parent, const char * name )</div></li><li><div class=fn>bool <a href="#isRequestActive"><b>isRequestActive</b></a> () const</div></li><li><div class=fn>QDLLink <a href="#link"><b>link</b></a> ( uint lid ) const</div></li><li><div class=fn>QMap<uint, QDLLink> <a href="#links"><b>links</b></a> () const</div></li><li><div class=fn>uint <a href="#count"><b>count</b></a> () const</div></li><li><div class=fn>virtual void <a href="#addLink"><b>addLink</b></a> ( const QDLLink & newLink )</div></li><li><div class=fn>virtual void <a href="#setLink"><b>setLink</b></a> ( uint lid, const QDLLink & newLink )</div></li><li><div class=fn>virtual void <a href="#removeLink"><b>removeLink</b></a> ( uint lid )</div></li><li><div class=fn>QString <a href="#hint"><b>hint</b></a> () const</div></li><li><div class=fn>void <a href="#setHint"><b>setHint</b></a> ( const QString & hint )</div></li></ul><h2>Public Slots</h2><ul><li><div class=fn>virtual void <a href="#clear"><b>clear</b></a> ()</div></li><li><div class=fn>virtual void <a href="#verifyLinks"><b>verifyLinks</b></a> ()</div></li><li><div class=fn>void <a href="#requestLink-2"><b>requestLink</b></a> ( QWidget * parent )</div></li><li><div class=fn>void <a href="#requestLink"><b>requestLink</b></a> ( const QString & channel )</div></li></ul><hr><a name="details"></a><h2>Detailed Description</h2>The QDLClient class provides a set of links and communication with a data source.<p> A QDLClient contains a set of links and handles communication with a data source.<p> A single client can have an unlimited number of links. To load and save links to and from a clientyou can use the utility functions <a href="qdl.html#loadLinks">QDL::loadLinks</a>() and <a href="qdl.html#saveLinks">QDL::saveLinks</a>() respectively.<p> This class operates independently of any other object. The subclass <a href="qdlwidgetclient.html">QDLWidgetClient</a> extends this class to operate on a widget and its text dependently.<p> <p>See also <a href="qdlwidgetclient.html">QDLWidgetClient</a> and <a href="qtopiaemb.html">Qtopia Classes</a>.<p> <hr><h2>Member Function Documentation</h2><h3 class=fn><a name="QDLClient"></a>QDLClient::QDLClient ( QObject * parent, const char * name )</h3>Constructs a QDLClient. <em>parent</em> and <em>name</em> are passed on to QObject.<h3 class=fn>void <a name="addLink"></a>QDLClient::addLink ( const <a href="qdllink.html">QDLLink</a> & newLink )<tt> [virtual]</tt></h3>Adds <em>newLink</em> to the client. A new link identifier is generated.<p>Reimplemented in <a href="qdlwidgetclient.html#addLink">QDLWidgetClient</a>.<h3 class=fn>void <a name="clear"></a>QDLClient::clear ()<tt> [virtual slot]</tt></h3>Clears all links in the client.<h3 class=fn>uint <a name="count"></a>QDLClient::count () const</h3>Returns the number of links in the client.<h3 class=fn>QString <a name="hint"></a>QDLClient::hint () const</h3>Returns the request hint for this client.<p> Subclasses may override this function if they wish to dynamically determine a hint.<p> <p>See also <a href="qdlwidgetclient.html#hint">QDLWidgetClient::hint</a>().<h3 class=fn>bool <a name="isRequestActive"></a>QDLClient::isRequestActive () const</h3>Returns TRUE if a request for links is active, otherwise returns FALSE.<h3 class=fn><a href="qdllink.html">QDLLink</a> <a name="link"></a>QDLClient::link ( uint lid ) const</h3>Returns the link specified by the link identifier <em>lid</em>.If no such link exists a null link is returned. <h3 class=fn>QMap<uint, QDLLink> <a name="links"></a>QDLClient::links () const</h3>Returns a link identifier to <a href="qdllink.html">QDLLink</a> map of all links in the client.<h3 class=fn>void <a name="removeLink"></a>QDLClient::removeLink ( uint lid )<tt> [virtual]</tt></h3> Removes the link specified by the link identifier <em>lid</em>.<p>Reimplemented in <a href="qdlwidgetclient.html#removeLink">QDLWidgetClient</a>.<h3 class=fn>void <a name="requestLink"></a>QDLClient::requestLink ( const QString & channel )<tt> [slot]</tt></h3>Sends a request for links to the data source listening on <em>channel</em>.<h3 class=fn>void <a name="requestLink-2"></a>QDLClient::requestLink ( QWidget * parent )<tt> [slot]</tt></h3> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.<p> Prompts the user to select a data source application, determines sourceapplication's channelbased on the user's selection, and then passes it to the above function.<em>parent</em> is the parent of the dialog used.<h3 class=fn>void <a name="setHint"></a>QDLClient::setHint ( const QString & hint )</h3>Sets the request hint for the client to <em>hint</em>.A hint is sent to a data source as part of the request to help it determine pertinent data.<p> A hint can only be used with a QDLClient by calling <a href="#setHint">setHint</a>() explicitly.<p> <p>See also <a href="qdlwidgetclient.html">QDLWidgetClient</a>.<h3 class=fn>void <a name="setLink"></a>QDLClient::setLink ( uint lid, const <a href="qdllink.html">QDLLink</a> & newLink )<tt> [virtual]</tt></h3> Sets the link specified by the link identifier <em>lid</em> to <em>newLink</em>.If no link for <em>lid</em> currently exists, it is created.<p>Reimplemented in <a href="qdlwidgetclient.html#setLink">QDLWidgetClient</a>.<h3 class=fn>void <a name="verifyLinks"></a>QDLClient::verifyLinks ()<tt> [virtual slot]</tt></h3>Verifies that all links in the client are valid. The default implementation does nothing,This function is called from <a href="qdl.html#saveLinks">QDL::saveLinks</a>().<p> Subclasses that wish to perform any verification processing should override this function.<p>Reimplemented in <a href="qdlwidgetclient.html#verifyLinks">QDLWidgetClient</a>.<!-- eof --><hr><p>This file is part of the <a href="../index.html">Qtopia</a> platform,copyright © 1995-2004<a href="http://www.trolltech.com/">Trolltech</a>, all rights reserved.<p><address><hr><div align="center"><table width="100%" cellspacing="0" border="0"><tr><td>Copyright © 2001-2004 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a><td align="right"><div align="right">Qtopia version 2.0.0</div></table></div></address></body></html>⌨️ 快捷键说明
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