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180 lines
8.7 KiB
180 lines
8.7 KiB
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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>QAssistantClient Class Reference</h1>
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<p>The QAssistantClient class provides a means of using Qt
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Assistant as an application's help tool.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qassistantclient-h.html">qassistantclient.h</a>></tt>
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<p>Inherits <a href="qobject.html">QObject</a>.
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<p><a href="qassistantclient-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="#QAssistantClient"><b>QAssistantClient</b></a> ( const QString & path, QObject * parent = 0, const char * name = 0 )</li>
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<li class=fn><a href="#~QAssistantClient"><b>~QAssistantClient</b></a> ()</li>
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<li class=fn>bool <a href="#isOpen"><b>isOpen</b></a> () const</li>
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<li class=fn>void <a href="#setArguments"><b>setArguments</b></a> ( const QStringList & args )</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>virtual void <a href="#openAssistant"><b>openAssistant</b></a> ()</li>
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<li class=fn>virtual void <a href="#closeAssistant"><b>closeAssistant</b></a> ()</li>
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<li class=fn>virtual void <a href="#showPage"><b>showPage</b></a> ( const QString & page )</li>
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</ul>
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<h2>Signals</h2>
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<ul>
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<li class=fn>void <a href="#assistantOpened"><b>assistantOpened</b></a> ()</li>
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<li class=fn>void <a href="#assistantClosed"><b>assistantClosed</b></a> ()</li>
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<li class=fn>void <a href="#error"><b>error</b></a> ( const QString & msg )</li>
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</ul>
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<h2>Properties</h2>
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<ul>
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<li class=fn>bool <a href="#open-prop"><b>open</b></a> - whether Qt Assistant is open <em>(read only)</em></li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The QAssistantClient class provides a means of using Qt
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Assistant as an application's help tool.
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<p> Using Qt Assistant is simple: Create a QAssistantClient instance,
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then call <a href="#showPage">showPage</a>() as often as necessary to show your help
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pages. When you call showPage(), Qt Assistant will be launched if
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it isn't already running.
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<p> The QAssistantClient instance can open (<a href="#openAssistant">openAssistant</a>()) or close
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(<a href="#closeAssistant">closeAssistant</a>()) Qt Assistant whenever required. If Qt Assistant
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is open, <a href="#isOpen">isOpen</a>() returns TRUE.
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<p> One QAssistantClient instance interacts with one Qt Assistant
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instance, so every time you call openAssistant(), showPage() or
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closeAssistant() they are applied to the particular Qt Assistant
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instance associated with the QAssistantClient.
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<p> When you call openAssistant() the <a href="#assistantOpened">assistantOpened</a>() signal is
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emitted. Similarly when closeAssistant() is called,
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<a href="#assistantClosed">assistantClosed</a>() is emitted. In either case, if an error occurs,
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<a href="#error">error</a>() is emitted.
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<p> This class is not included in the Qt library itself. To use it you
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must link against <tt>libqassistantclient.a</tt> (Unix) or <tt>qassistantclient.lib</tt> (Windows), which is built into <tt>INSTALL/lib</tt>
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if you built the Qt tools (<tt>INSTALL</tt> is the directory where Qt is
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installed). If you use qmake, then you can simply add the following
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line to your pro file:
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<p> <pre>
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LIBS += -lqassistantclient
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</pre>
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<p> See also "Adding Documentation to Qt Assistant" in the <a href="assistant.html">Qt Assistant manual</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="QAssistantClient"></a>QAssistantClient::QAssistantClient ( const <a href="qstring.html">QString</a> & path, <a href="qobject.html">QObject</a> * parent = 0, const char * name = 0 )
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</h3>
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Constructs an assistant client object. The <em>path</em> specifies the
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path to the Qt Assistant executable. If <em>path</em> is an empty
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string the system path (<tt>%PATH%</tt> or <tt>$PATH</tt>) is used.
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<p> The assistant client object is a child of <em>parent</em> and is called
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<em>name</em>.
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<h3 class=fn><a name="~QAssistantClient"></a>QAssistantClient::~QAssistantClient ()
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</h3>
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Destroys the assistant client object and frees up all allocated
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resources.
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<h3 class=fn>void <a name="assistantClosed"></a>QAssistantClient::assistantClosed ()<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted when the connection to Qt Assistant is
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closed. This happens when the user exits Qt Assistant, or when an
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error in the server or client occurs, or if <a href="#closeAssistant">closeAssistant</a>() is
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called.
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<h3 class=fn>void <a name="assistantOpened"></a>QAssistantClient::assistantOpened ()<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted when Qt Assistant is open and the
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client-server communication is set up.
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<h3 class=fn>void <a name="closeAssistant"></a>QAssistantClient::closeAssistant ()<tt> [virtual slot]</tt>
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</h3>
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Use this function to close Qt Assistant.
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<p> <p>See also <a href="#assistantClosed">assistantClosed</a>().
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<h3 class=fn>void <a name="error"></a>QAssistantClient::error ( const <a href="qstring.html">QString</a> & msg )<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted if Qt Assistant cannot be started or if an
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error occurs during the initialization of the connection between
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Qt Assistant and the calling application. The <em>msg</em> provides an
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explanation of the error.
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<h3 class=fn>bool <a name="isOpen"></a>QAssistantClient::isOpen () const
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</h3><p>Returns TRUE if Qt Assistant is open; otherwise returns FALSE.
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See the <a href="qassistantclient.html#open-prop">"open"</a> property for details.
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<h3 class=fn>void <a name="openAssistant"></a>QAssistantClient::openAssistant ()<tt> [virtual slot]</tt>
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</h3>
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This function opens Qt Assistant and sets up the client-server
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communiction between the application and Qt Assistant. If it is
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already open, this function does nothing. If an error occurs,
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<a href="#error">error</a>() is emitted.
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<p> <p>See also <a href="#assistantOpened">assistantOpened</a>().
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<h3 class=fn>void <a name="setArguments"></a>QAssistantClient::setArguments ( const <a href="qstringlist.html">QStringList</a> & args )
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</h3>
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Sets the command line arguments used when Qt Assistant is
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started to <em>args</em>.
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<h3 class=fn>void <a name="showPage"></a>QAssistantClient::showPage ( const <a href="qstring.html">QString</a> & page )<tt> [virtual slot]</tt>
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</h3>
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Call this function to make Qt Assistant show a particular <em>page</em>.
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The <em>page</em> is a filename (e.g. <tt>myhelpfile.html</tt>). See "Adding
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Documentation to Qt Assistant" in the <a href="assistant.html">Qt
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Assistant manual</a> for further information.
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<p> If Qt Assistant hasn't been <a href="#openAssistant">opened</a>
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yet, this function will do nothing. You can use <a href="#isOpen">isOpen</a>() to
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determine whether Qt Assistant is up and running, or you can
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connect to the asssistantOpened() signal.
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<p> <p>See also <a href="#open-prop">open</a> and <a href="#assistantOpened">assistantOpened</a>().
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<p>Example: <a href="helpsystem-example.html#x2686">helpsystem/mainwindow.cpp</a>.
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<hr><h2>Property Documentation</h2>
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<h3 class=fn>bool <a name="open-prop"></a>open</h3>
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<p>This property holds whether Qt Assistant is open.
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<p>
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<p>Get this property's value with <a href="#isOpen">isOpen</a>().
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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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<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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