You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
170 lines
8.0 KiB
170 lines
8.0 KiB
<!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>TQAxBindable 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>TQAxBindable Class Reference<br><small>[<a href="qaxserver.html">TQAxServer module</a>]</small></h1>
|
|
|
|
<p>The TQAxBindable class provides an interface between a
|
|
TQWidget and an ActiveX client.
|
|
<a href="#details">More...</a>
|
|
<p>This class is part of the <b>TQt ActiveTQt 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="#TQAxBindable"><b>TQAxBindable</b></a> ()</li>
|
|
<li class=fn>virtual <a href="#~TQAxBindable"><b>~TQAxBindable</b></a> ()</li>
|
|
<li class=fn>virtual TQAxAggregated * <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 TQString & src, const TQString & desc, const TQString & context = TQString::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>TQt <a href="activentqt.html#ActiveTQt">ActiveTQt</a> Extension</b>, which can be found in the <tt>qt/extensions</tt> directory. It is not included in the main TQt API.
|
|
<p>
|
|
|
|
The TQAxBindable class provides an interface between a
|
|
<a href="tqwidget.html">TQWidget</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 TQWidget (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
|
|
TQWidget <em>first</em>.
|
|
<p> <pre>
|
|
class MyActiveX : public <a href="tqwidget.html">TQWidget</a>, public TQAxBindable
|
|
{
|
|
<a href="metaobjects.html#TQ_OBJECT">TQ_OBJECT</a>
|
|
TQ_PROPERTY( int value READ value WRITE setValue )
|
|
public:
|
|
MyActiveX( <a href="tqwidget.html">TQWidget</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">TQAxAggregated</a> subclass.
|
|
|
|
<hr><h2>Member Function Documentation</h2>
|
|
<h3 class=fn><a name="TQAxBindable"></a>TQAxBindable::TQAxBindable ()
|
|
</h3>
|
|
Constructs an empty TQAxBindable object.
|
|
|
|
<h3 class=fn><a name="~TQAxBindable"></a>TQAxBindable::~TQAxBindable ()<tt> [virtual]</tt>
|
|
</h3>
|
|
Destroys the TQAxBindable object.
|
|
|
|
<h3 class=fn>IUnknown * <a name="clientSite"></a>TQAxBindable::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">TQAxAggregated</a> * <a name="createAggregate"></a>TQAxBindable::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">TQAxAggregated</a> subclass.
|
|
<p> The default implementation returns the null pointer.
|
|
|
|
<h3 class=fn>void <a name="propertyChanged"></a>TQAxBindable::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>TQAxBindable::reportError ( int code, const <a href="ntqstring.html">TQString</a> & src, const <a href="ntqstring.html">TQString</a> & desc, const <a href="ntqstring.html">TQString</a> & context = TQString::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>TQAxBindable::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 MyActiveTQt::setText( const <a href="ntqstring.html">TQString</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">TQt toolkit</a>.
|
|
Copyright © 1995-2007
|
|
<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 © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
|