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| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
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| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
| commit | bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch) | |
| tree | 7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/qaxbindable.html | |
| download | qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip | |
Add Qt3 development HEAD version
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| -rw-r--r-- | doc/html/qaxbindable.html | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/doc/html/qaxbindable.html b/doc/html/qaxbindable.html new file mode 100644 index 0000000..f49d34a --- /dev/null +++ b/doc/html/qaxbindable.html @@ -0,0 +1,169 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/extensions/activeqt/control/qaxbindable.cpp:36 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>QAxBindable Class</title> +<style type="text/css"><!-- +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 bgcolor="#E5E5E5"> +<td 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="mainclasses.html"> +<font color="#004faf">Main Classes</font></a> + | <a href="annotated.html"> +<font color="#004faf">Annotated</font></a> + | <a href="groups.html"> +<font color="#004faf">Grouped Classes</font></a> + | <a href="functions.html"> +<font color="#004faf">Functions</font></a> +</td> +<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QAxBindable Class Reference<br><small>[<a href="qaxserver.html">QAxServer module</a>]</small></h1> + +<p>The QAxBindable class provides an interface between a +QWidget and an ActiveX client. +<a href="#details">More...</a> +<p>This class is part of the <b>Qt ActiveQt Extension</b>. +<p><tt>#include <<a href="qaxbindable-h.html">qaxbindable.h</a>></tt> +<p><a href="qaxbindable-members.html">List of all member functions.</a> +<h2>Public Members</h2> +<ul> +<li class=fn><a href="#QAxBindable"><b>QAxBindable</b></a> ()</li> +<li class=fn>virtual <a href="#~QAxBindable"><b>~QAxBindable</b></a> ()</li> +<li class=fn>virtual QAxAggregated * <a href="#createAggregate"><b>createAggregate</b></a> ()</li> +</ul> +<h2>Static Public Members</h2> +<ul> +<li class=fn>void <a href="#reportError"><b>reportError</b></a> ( int code, const QString & src, const QString & desc, const QString & context = QString::null )</li> +</ul> +<h2>Protected Members</h2> +<ul> +<li class=fn>bool <a href="#requestPropertyChange"><b>requestPropertyChange</b></a> ( const char * property )</li> +<li class=fn>void <a href="#propertyChanged"><b>propertyChanged</b></a> ( const char * property )</li> +<li class=fn>IUnknown * <a href="#clientSite"><b>clientSite</b></a> () const</li> +</ul> +<hr><a name="details"></a><h2>Detailed Description</h2> +<p> This class is defined in the <b>Qt <a href="activeqt.html#ActiveQt">ActiveQt</a> Extension</b>, which can be found in the <tt>qt/extensions</tt> directory. It is not included in the main Qt API. +<p> + +The QAxBindable class provides an interface between a +<a href="qwidget.html">QWidget</a> and an ActiveX client. + +<p> + +<p> The functions provided by this class allow an ActiveX control to +communicate property changes to a client application. Inherit +your control class from both QWidget (directly or indirectly) and +this class to get access to this class's functions. The <a href="moc.html">meta object compiler</a> requires you to inherit from +QWidget <em>first</em>. +<p> <pre> + class MyActiveX : public <a href="qwidget.html">QWidget</a>, public QAxBindable + { + <a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a> + Q_PROPERTY( int value READ value WRITE setValue ) + public: + MyActiveX( <a href="qwidget.html">QWidget</a> *parent = 0, const char *name = 0 ); + ... + + int value() const; + void setValue( int ); + }; + </pre> + +<p> When implementing the property write function, use +<a href="#requestPropertyChange">requestPropertyChange</a>() to get permission from the ActiveX client +application to change this property. When the property changes, +call <a href="#propertyChanged">propertyChanged</a>() to notify the ActiveX client application +about the change. If a fatal error occurs in the control, use the +static <a href="#reportError">reportError</a>() function to notify the client. +<p> Use the interface returned by <a href="#clientSite">clientSite</a>() to call the ActiveX +client. To implement additional COM interfaces in your ActiveX +control, reimplement <a href="#createAggregate">createAggregate</a>() to return a new object of a +<a href="qaxaggregated.html">QAxAggregated</a> subclass. + +<hr><h2>Member Function Documentation</h2> +<h3 class=fn><a name="QAxBindable"></a>QAxBindable::QAxBindable () +</h3> +Constructs an empty QAxBindable object. + +<h3 class=fn><a name="~QAxBindable"></a>QAxBindable::~QAxBindable ()<tt> [virtual]</tt> +</h3> +Destroys the QAxBindable object. + +<h3 class=fn>IUnknown * <a name="clientSite"></a>QAxBindable::clientSite () const<tt> [protected]</tt> +</h3> +Returns a pointer to the client site interface for this ActiveX object, +or null if no client site has been set. +<p> Call QueryInterface() on the returned interface to get the interface you +want to call. + +<h3 class=fn><a href="qaxaggregated.html">QAxAggregated</a> * <a name="createAggregate"></a>QAxBindable::createAggregate ()<tt> [virtual]</tt> +</h3> +Reimplement this function when you want to implement additional +COM interfaces in the ActiveX control, or when you want to provide +alternative implementations of COM interfaces. Return a new object +of a <a href="qaxaggregated.html">QAxAggregated</a> subclass. +<p> The default implementation returns the null pointer. + +<h3 class=fn>void <a name="propertyChanged"></a>QAxBindable::propertyChanged ( const char * property )<tt> [protected]</tt> +</h3> +Call this function to notify the client that is hosting this +ActiveX control that the property <em>property</em> has been changed. +<p> This function is usually called at the end of the property's write +function. +<p> <p>See also <a href="#requestPropertyChange">requestPropertyChange</a>(). + +<h3 class=fn>void <a name="reportError"></a>QAxBindable::reportError ( int code, const <a href="qstring.html">QString</a> & src, const <a href="qstring.html">QString</a> & desc, const <a href="qstring.html">QString</a> & context = QString::null )<tt> [static]</tt> +</h3> + +<p> Reports an error to the client application. <em>code</em> is a +control-defined error code. <em>desc</em> is a human-readable description +of the error intended for the application user. <em>src</em> is the name +of the source for the error, typically the ActiveX server name. <em>context</em> can be the location of a help file with more information +about the error. If <em>context</em> ends with a number in brackets, +e.g. [12], this number will be interpreted as the context ID in +the help file. + +<h3 class=fn>bool <a name="requestPropertyChange"></a>QAxBindable::requestPropertyChange ( const char * property )<tt> [protected]</tt> +</h3> +Call this function to request permission to change the property +<em>property</em> from the client that is hosting this ActiveX control. +Returns TRUE if the client allows the change; otherwise returns +FALSE. +<p> This function is usually called first in the write function for <em>property</em>, and writing is abandoned if the function returns FALSE. +<p> <pre> + void MyActiveQt::setText( const <a href="qstring.html">QString</a> &text ) + { + if ( !requestPropertyChange( "text" ) ) + return; + + // update property + + <a href="#propertyChanged">propertyChanged</a>( "text" ); + } + </pre> + +<p> <p>See also <a href="#propertyChanged">propertyChanged</a>(). + +<!-- eof --> +<hr><p> +This file is part of the <a href="index.html">Qt toolkit</a>. +Copyright © 1995-2007 +<a href="http://www.trolltech.com/">Trolltech</a>. 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