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231 lines
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231 lines
15 KiB
13 years ago
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/extensions/activeqt/container/qaxscript.cpp:867 -->
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<title>TQAxScriptManager 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>TQAxScriptManager Class Reference<br><small>[<a href="qaxcontainer.html">TQAxContainer module</a>]</small></h1>
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<p>The TQAxScriptManager class provides a bridge between application objects
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and script code.
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<a href="#details">More...</a>
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<p>This class is part of the <b>TQt ActiveTQt Extension</b>.
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<p><tt>#include <<a href="qaxscript-h.html">qaxscript.h</a>></tt>
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<p>Inherits <a href="qobject.html">TQObject</a>.
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<p><a href="qaxscriptmanager-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="#TQAxScriptManager"><b>TQAxScriptManager</b></a> ( TQObject * parent = 0, const char * name = 0 )</li>
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<li class=fn><a href="#~TQAxScriptManager"><b>~TQAxScriptManager</b></a> ()</li>
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<li class=fn>void <a href="#addObject"><b>addObject</b></a> ( TQAxBase * object )</li>
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<li class=fn>void <a href="#addObject-2"><b>addObject</b></a> ( TQObject * object )</li>
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<li class=fn>TQStringList <a href="#functions"><b>functions</b></a> ( TQAxScript::FunctionFlags flags = TQAxScript::FunctionNames ) const</li>
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<li class=fn>TQStringList <a href="#scriptNames"><b>scriptNames</b></a> () const</li>
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<li class=fn>TQAxScript * <a href="#script"><b>script</b></a> ( const TQString & name ) const</li>
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<li class=fn>TQAxScript * <a href="#load"><b>load</b></a> ( const TQString & code, const TQString & name, const TQString & language )</li>
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<li class=fn>TQAxScript * <a href="#load-2"><b>load</b></a> ( const TQString & file, const TQString & name )</li>
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<li class=fn>TQVariant <a href="#call"><b>call</b></a> ( const TQString & function, const TQVariant & var1 = TQVariant ( ), const TQVariant & var2 = TQVariant ( ), const TQVariant & var3 = TQVariant ( ), const TQVariant & var4 = TQVariant ( ), const TQVariant & var5 = TQVariant ( ), const TQVariant & var6 = TQVariant ( ), const TQVariant & var7 = TQVariant ( ), const TQVariant & var8 = TQVariant ( ) )</li>
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<li class=fn>TQVariant <a href="#call-2"><b>call</b></a> ( const TQString & function, TQValueList<TQVariant> & arguments )</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="#error"><b>error</b></a> ( TQAxScript * script, int code, const TQString & description, int sourcePosition, const TQString & sourceText )</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>bool <a href="#registerEngine"><b>registerEngine</b></a> ( const TQString & name, const TQString & extension, const TQString & code = TQString ( ) )</li>
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<li class=fn>TQString <a href="#scriptFileFilter"><b>scriptFileFilter</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> This class is defined in the <b>TQt <a href="activeqt.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.
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<p>
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The TQAxScriptManager class provides a bridge between application objects
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and script code.
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<p> The TQAxScriptManager acts as a bridge between the COM objects embedded
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in the TQt application through <a href="qaxobject.html">TQAxObject</a> or <a href="qaxwidget.html">TQAxWidget</a>, and the scripting
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languages available through the Windows Script technologies, usually JScript
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and VBScript.
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<p> Create one TQAxScriptManager for each separate document in your
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application, and add the COM objects the scripts need to access
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using <a href="#addObject">addObject</a>(). Then <a href="#load">load</a>() the script sources and invoke the
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functions using <a href="#call">call</a>().
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<p> <b>Warning:</b> This class is not available with the bcc5.5 and MingW
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compilers.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQAxScriptManager"></a>TQAxScriptManager::TQAxScriptManager ( <a href="qobject.html">TQObject</a> * parent = 0, const char * name = 0 )
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</h3>
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Creates a TQAxScriptManager object. <em>parent</em> and <em>name</em> are passed
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on to the <a href="qobject.html">TQObject</a> constructor.
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<p> It is usual to create one TQAxScriptManager for each document in an
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application.
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<h3 class=fn><a name="~TQAxScriptManager"></a>TQAxScriptManager::~TQAxScriptManager ()
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</h3>
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Destroys the objects, releasing all allocated resources.
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<h3 class=fn>void <a name="addObject"></a>TQAxScriptManager::addObject ( <a href="qaxbase.html">TQAxBase</a> * object )
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</h3>
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Adds <em>object</em> to the manager. Scripts handled by this
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manager can access the object in the code using the object's <a href="qobject.html#name-prop">name</a> property.
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<p> You must add all the necessary objects before loading any scripts.
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<h3 class=fn>void <a name="addObject-2"></a>TQAxScriptManager::addObject ( <a href="qobject.html">TQObject</a> * object )
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</h3> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Adds a generic COM wrapper for <em>object</em> to the manager. <em>object</em>
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must be exposed as a COM object using the functionality provided
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by the <a href="qaxserver.html">TQAxServer module.</a>. Applications
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using this function you must link against the qaxserver library.
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<h3 class=fn><a href="qvariant.html">TQVariant</a> <a name="call"></a>TQAxScriptManager::call ( const <a href="qstring.html">TQString</a> & function, const <a href="qvariant.html">TQVariant</a> & var1 = TQVariant ( ), const <a href="qvariant.html">TQVariant</a> & var2 = TQVariant ( ), const <a href="qvariant.html">TQVariant</a> & var3 = TQVariant ( ), const <a href="qvariant.html">TQVariant</a> & var4 = TQVariant ( ), const <a href="qvariant.html">TQVariant</a> & var5 = TQVariant ( ), const <a href="qvariant.html">TQVariant</a> & var6 = TQVariant ( ), const <a href="qvariant.html">TQVariant</a> & var7 = TQVariant ( ), const <a href="qvariant.html">TQVariant</a> & var8 = TQVariant ( ) )
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</h3>
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Calls <em>function</em>, passing the parameters <em>var1</em>, <em>var1</em>,
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<em>var2</em>, <em>var3</em>, <em>var4</em>, <em>var5</em>, <em>var6</em>, <em>var7</em> and <em>var8</em>
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as arguments and returns the value returned by the function, or an
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invalid <a href="qvariant.html">TQVariant</a> if the function does not return a value or when
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the function call failed. The call returns when the script's
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execution has finished.
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<p> In most script engines the only supported parameter type is "const
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TQVariant&", for example, to call a JavaScript function
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<pre>
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function setNumber(number)
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{
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n = number;
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}
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</pre>
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use
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<pre>
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<a href="qvaluelist.html">TQValueList</a> args;
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args << 5;
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script->call("setNumber(const <a href="qvariant.html">TQVariant</a>&)", args);
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</pre>
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As with <a href="qaxbase.html#dynamicCall">dynamicCall</a> the
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parameters can directly be embedded in the function string.
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<pre>
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script->call("setNumber(5)");
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</pre>
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However, this is slower.
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<p> Functions provided by script engines that don't support
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introspection are not available and must be called directly
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using <a href="qaxscript.html#call">TQAxScript::call</a>() on the respective <a href="#script">script</a> object.
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<p> Note that calling this function can be significantely slower than
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using <a href="#call">call</a>() on the respective <a href="qaxscript.html">TQAxScript</a> directly.
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<h3 class=fn><a href="qvariant.html">TQVariant</a> <a name="call-2"></a>TQAxScriptManager::call ( const <a href="qstring.html">TQString</a> & function, <a href="qvaluelist.html">TQValueList</a><TQVariant> & arguments )
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</h3> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Calls <em>function</em> passing <em>arguments</em> as parameters, and returns
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the result. Returns when the script's execution has finished.
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<h3 class=fn>void <a name="error"></a>TQAxScriptManager::error ( <a href="qaxscript.html">TQAxScript</a> * script, int code, const <a href="qstring.html">TQString</a> & description, int sourcePosition, const <a href="qstring.html">TQString</a> & sourceText )<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted when an execution error occured while
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running <em>script</em>.
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<p> <em>code</em>, <em>description</em>, <em>sourcePosition</em> and <em>sourceText</em>
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contain information about the execution error.
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<h3 class=fn><a href="qstringlist.html">TQStringList</a> <a name="functions"></a>TQAxScriptManager::functions ( <a href="qaxscript.html#FunctionFlags-enum">TQAxScript::FunctionFlags</a> flags = TQAxScript::FunctionNames ) const
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</h3>
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Returns a list with all the functions that are available.
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Functions provided by script engines that don't support
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introspection are not included in the list.
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The functions are either provided with full prototypes or
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only as names, depending on the value of <em>flags</em>.
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<h3 class=fn><a href="qaxscript.html">TQAxScript</a> * <a name="load"></a>TQAxScriptManager::load ( const <a href="qstring.html">TQString</a> & code, const <a href="qstring.html">TQString</a> & name, const <a href="qstring.html">TQString</a> & language )
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</h3>
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Loads the script source <em>code</em> using the script engine for <em>language</em>. The script can later be referred to using its <em>name</em>
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which should not be empty.
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<p> The function returns a pointer to the script for the given
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<em>code</em> if the <em>code</em> was loaded successfully; otherwise it
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returns 0.
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<p> If <em>language</em> is empty it will be determined heuristically. If <em>code</em> contains the string "End Sub" it will be interpreted as
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VBScript, otherwise as JScript. Additional script engines can be
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registered using <a href="#registerEngine">registerEngine</a>().
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<p> You must add all the objects necessary (using <a href="#addObject">addObject</a>()) <em>before</em> loading any scripts. If <em>code</em> declares a function that is
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already available (no matter in which language) the first function
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is overloaded and can no longer be called via <a href="#call">call</a>(); but it will
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still be available by calling its <a href="#script">script</a>
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directly.
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<p> <p>See also <a href="#addObject">addObject</a>(), <a href="#scriptNames">scriptNames</a>(), and <a href="#functions">functions</a>().
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<h3 class=fn><a href="qaxscript.html">TQAxScript</a> * <a name="load-2"></a>TQAxScriptManager::load ( const <a href="qstring.html">TQString</a> & file, const <a href="qstring.html">TQString</a> & name )
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</h3>
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This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Loads the source code from the <em>file</em>. The script can later be
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referred to using its <em>name</em> which should not be empty.
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<p> The function returns a pointer to the script engine for the code
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in <em>file</em> if <em>file</em> was loaded successfully; otherwise it
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returns 0.
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<p> The script engine used is determined from the file's extension. By
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default ".js" files are interpreted as JScript files, and ".vbs"
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and ".dsm" files are interpreted as VBScript. Additional script
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engines can be registered using <a href="#registerEngine">registerEngine</a>().
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<h3 class=fn>bool <a name="registerEngine"></a>TQAxScriptManager::registerEngine ( const <a href="qstring.html">TQString</a> & name, const <a href="qstring.html">TQString</a> & extension, const <a href="qstring.html">TQString</a> & code = TQString ( ) )<tt> [static]</tt>
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</h3>
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Registers the script engine called <em>name</em> and returns TRUE if the
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engine was found; otherwise does nothing and returns FALSE.
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<p> The script engine will be used when loading files with the given
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<em>extension</em>, or when loading source code that contains the string
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<em>code</em>.
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<h3 class=fn><a href="qaxscript.html">TQAxScript</a> * <a name="script"></a>TQAxScriptManager::script ( const <a href="qstring.html">TQString</a> & name ) const
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</h3>
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Returns the script called <em>name</em>.
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<p> You can use the returned pointer to call functions directly
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through <a href="qaxscript.html#call">TQAxScript::call</a>(), to access the script engine directly, or
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to delete and thus unload the script.
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<h3 class=fn><a href="qstring.html">TQString</a> <a name="scriptFileFilter"></a>TQAxScriptManager::scriptFileFilter ()<tt> [static]</tt>
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</h3>
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Returns a file filter listing all the supported script languages.
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This filter string is convenient for use with <a href="qfiledialog.html">TQFileDialog</a>.
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<h3 class=fn><a href="qstringlist.html">TQStringList</a> <a name="scriptNames"></a>TQAxScriptManager::scriptNames () const
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</h3>
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Returns a list with the names of all the scripts.
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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">TQt 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>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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