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    <a href="index.html" class="qtref"><span>QtMobility Reference Documentation</span></a>
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#public-slots">Public Slots</a></li>
<li class="level1"><a href="#signals">Signals</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QMediaPlaylistProvider Class Reference</h1>
<!-- $$$QMediaPlaylistProvider-brief -->
<p>The QMediaPlaylistProvider class provides an abstract list of media. <a href="#details">More...</a></p>
<!-- @@@QMediaPlaylistProvider -->
<pre class="cpp"> <span class="preprocessor">#include &lt;QMediaPlaylistProvider&gt;</span></pre><p><b>Inherits: </b><a href="http://qt.nokia.com/doc/4.7/qobject.html">QObject</a>.</p>
<p>This class was introduced in Qt Mobility 1.0.</p>
<ul>
<li><a href="qmediaplaylistprovider-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#QMediaPlaylistProvider">QMediaPlaylistProvider</a></b> ( QObject * <i>parent</i> = 0 )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#dtor.QMediaPlaylistProvider">~QMediaPlaylistProvider</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#addMedia">addMedia</a></b> ( const QMediaContent &amp; <i>media</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#addMedia-2">addMedia</a></b> ( const QList&lt;QMediaContent&gt; &amp; <i>items</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#clear">clear</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#insertMedia">insertMedia</a></b> ( int <i>position</i>, const QMediaContent &amp; <i>media</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#insertMedia-2">insertMedia</a></b> ( int <i>position</i>, const QList&lt;QMediaContent&gt; &amp; <i>items</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#isReadOnly">isReadOnly</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#load">load</a></b> ( const QUrl &amp; <i>location</i>, const char * <i>format</i> = 0 )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#load-2">load</a></b> ( QIODevice * <i>device</i>, const char * <i>format</i> = 0 )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QMediaContent </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#media">media</a></b> ( int <i>index</i> ) const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual int </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#mediaCount">mediaCount</a></b> () const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#removeMedia">removeMedia</a></b> ( int <i>position</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#removeMedia-2">removeMedia</a></b> ( int <i>start</i>, int <i>end</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#save">save</a></b> ( const QUrl &amp; <i>location</i>, const char * <i>format</i> = 0 )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#save-2">save</a></b> ( QIODevice * <i>device</i>, const char * <i>format</i> )</td></tr>
</table>
<ul>
<li class="fn">29 public functions inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#public-functions">QObject</a></li>
</ul>
<a name="public-slots"></a>
<h2>Public Slots</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#shuffle">shuffle</a></b> ()</td></tr>
</table>
<ul>
<li class="fn">1 public slot inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#public-slots">QObject</a></li>
</ul>
<a name="signals"></a>
<h2>Signals</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#loadFailed">loadFailed</a></b> ( QMediaPlaylist::Error <i>error</i>, const QString &amp; <i>errorMessage</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#loaded">loaded</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#mediaAboutToBeInserted">mediaAboutToBeInserted</a></b> ( int <i>start</i>, int <i>end</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#mediaAboutToBeRemoved">mediaAboutToBeRemoved</a></b> ( int <i>start</i>, int <i>end</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#mediaChanged">mediaChanged</a></b> ( int <i>start</i>, int <i>end</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#mediaInserted">mediaInserted</a></b> ( int <i>start</i>, int <i>end</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaplaylistprovider.html#mediaRemoved">mediaRemoved</a></b> ( int <i>start</i>, int <i>end</i> )</td></tr>
</table>
<ul>
<li class="fn">1 signal inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#signals">QObject</a></li>
</ul>
<h3>Additional Inherited Members</h3>
<ul>
<li class="fn">1 property inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#properties">QObject</a></li>
<li class="fn">1 public variable inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#public-variables">QObject</a></li>
<li class="fn">4 static public members inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#static-public-members">QObject</a></li>
<li class="fn">7 protected functions inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#protected-functions">QObject</a></li>
<li class="fn">2 protected variables inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#protected-variables">QObject</a></li>
</ul>
<a name="details"></a>
<!-- $$$QMediaPlaylistProvider-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The QMediaPlaylistProvider class provides an abstract list of media.</p>
</div>
<p><b>See also </b><a href="qmediaplaylist.html">QMediaPlaylist</a>.</p>
<!-- @@@QMediaPlaylistProvider -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QMediaPlaylistProvider[overload1]$$$QMediaPlaylistProviderQObject* -->
<h3 class="fn"><a name="QMediaPlaylistProvider"></a>QMediaPlaylistProvider::<span class="name">QMediaPlaylistProvider</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qobject.html">QObject</a></span> * <i>parent</i> = 0 )</h3>
<p>Constructs a playlist provider with the given <i>parent</i>.</p>
<!-- @@@QMediaPlaylistProvider -->
<!-- $$$~QMediaPlaylistProvider[overload1]$$$~QMediaPlaylistProvider -->
<h3 class="fn"><a name="dtor.QMediaPlaylistProvider"></a>QMediaPlaylistProvider::<span class="name">~QMediaPlaylistProvider</span> ()<tt> [virtual]</tt></h3>
<p>Destroys a playlist provider.</p>
<!-- @@@~QMediaPlaylistProvider -->
<!-- $$$addMedia[overload1]$$$addMediaconstQMediaContent& -->
<h3 class="fn"><a name="addMedia"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">addMedia</span> ( const <span class="type"><a href="qmediacontent.html">QMediaContent</a></span> &amp; <i>media</i> )<tt> [virtual]</tt></h3>
<p>Append <i>media</i> to a playlist.</p>
<p>Returns true if the media was appended; and false otherwise.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@addMedia -->
<!-- $$$addMedia$$$addMediaconstQList<QMediaContent>& -->
<h3 class="fn"><a name="addMedia-2"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">addMedia</span> ( const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qlist.html">QList</a></span>&lt;<span class="type"><a href="qmediacontent.html">QMediaContent</a></span>&gt; &amp; <i>items</i> )<tt> [virtual]</tt></h3>
<p>Append multiple media <i>items</i> to a playlist.</p>
<p>Returns true if the media items were appended; and false otherwise.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@addMedia -->
<!-- $$$clear[overload1]$$$clear -->
<h3 class="fn"><a name="clear"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">clear</span> ()<tt> [virtual]</tt></h3>
<p>Removes all media from a playlist.</p>
<p>Returns true if the media was removed; and false otherwise.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@clear -->
<!-- $$$insertMedia[overload1]$$$insertMediaintconstQMediaContent& -->
<h3 class="fn"><a name="insertMedia"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">insertMedia</span> ( <span class="type">int</span> <i>position</i>, const <span class="type"><a href="qmediacontent.html">QMediaContent</a></span> &amp; <i>media</i> )<tt> [virtual]</tt></h3>
<p>Inserts <i>media</i> into a playlist at <i>position</i>.</p>
<p>Returns true if the media was inserted; and false otherwise.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@insertMedia -->
<!-- $$$insertMedia$$$insertMediaintconstQList<QMediaContent>& -->
<h3 class="fn"><a name="insertMedia-2"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">insertMedia</span> ( <span class="type">int</span> <i>position</i>, const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qlist.html">QList</a></span>&lt;<span class="type"><a href="qmediacontent.html">QMediaContent</a></span>&gt; &amp; <i>items</i> )<tt> [virtual]</tt></h3>
<p>Inserts multiple media <i>items</i> into a playlist at <i>position</i>.</p>
<p>Returns true if the media <i>items</i> were inserted; and false otherwise.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@insertMedia -->
<!-- $$$isReadOnly[overload1]$$$isReadOnly -->
<h3 class="fn"><a name="isReadOnly"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">isReadOnly</span> () const<tt> [virtual]</tt></h3>
<p>Returns true if a playlist is read-only; otherwise returns false.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@isReadOnly -->
<!-- $$$load[overload1]$$$loadconstQUrl&constchar* -->
<h3 class="fn"><a name="load"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">load</span> ( const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qurl.html">QUrl</a></span> &amp; <i>location</i>, const <span class="type">char</span> * <i>format</i> = 0 )<tt> [virtual]</tt></h3>
<p>Loads a playlist from from a URL <i>location</i>. If no playlist <i>format</i> is specified the loader will inspect the URL or probe the headers to guess the format.</p>
<p>New items are appended to playlist.</p>
<p>Returns true if the provider supports the format and loading from the locations URL protocol, otherwise this will return false.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@load -->
<!-- $$$load$$$loadQIODevice*constchar* -->
<h3 class="fn"><a name="load-2"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">load</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qiodevice.html">QIODevice</a></span> * <i>device</i>, const <span class="type">char</span> * <i>format</i> = 0 )<tt> [virtual]</tt></h3>
<p>Loads a playlist from from an I/O <i>device</i>. If no playlist <i>format</i> is specified the loader will probe the headers to guess the format.</p>
<p>New items are appended to playlist.</p>
<p>Returns true if the provider supports the format and loading from an I/O device, otherwise this will return false.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@load -->
<!-- $$$loadFailed[overload1]$$$loadFailedQMediaPlaylist::ErrorconstQString& -->
<h3 class="fn"><a name="loadFailed"></a><span class="type">void</span> QMediaPlaylistProvider::<span class="name">loadFailed</span> ( <span class="type"><a href="qmediaplaylist.html#Error-enum">QMediaPlaylist::Error</a></span> <i>error</i>, const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qstring.html">QString</a></span> &amp; <i>errorMessage</i> )<tt> [signal]</tt></h3>
<p>Signals that a load failed() due to an <i>error</i>. The <i>errorMessage</i> provides more information.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@loadFailed -->
<!-- $$$loaded[overload1]$$$loaded -->
<h3 class="fn"><a name="loaded"></a><span class="type">void</span> QMediaPlaylistProvider::<span class="name">loaded</span> ()<tt> [signal]</tt></h3>
<p>Signals that a <a href="qmediaplaylistprovider.html#load">load</a>() finished successfully.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@loaded -->
<!-- $$$media[overload1]$$$mediaint -->
<h3 class="fn"><a name="media"></a><span class="type"><a href="qmediacontent.html">QMediaContent</a></span> QMediaPlaylistProvider::<span class="name">media</span> ( <span class="type">int</span> <i>index</i> ) const<tt> [pure virtual]</tt></h3>
<p>Returns the media at <i>index</i> in the playlist.</p>
<p>If the index is invalid this will return a null media content.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@media -->
<!-- $$$mediaAboutToBeInserted[overload1]$$$mediaAboutToBeInsertedintint -->
<h3 class="fn"><a name="mediaAboutToBeInserted"></a><span class="type">void</span> QMediaPlaylistProvider::<span class="name">mediaAboutToBeInserted</span> ( <span class="type">int</span> <i>start</i>, <span class="type">int</span> <i>end</i> )<tt> [signal]</tt></h3>
<p>Signals that new media is about to be inserted into a playlist between the <i>start</i> and <i>end</i> positions.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@mediaAboutToBeInserted -->
<!-- $$$mediaAboutToBeRemoved[overload1]$$$mediaAboutToBeRemovedintint -->
<h3 class="fn"><a name="mediaAboutToBeRemoved"></a><span class="type">void</span> QMediaPlaylistProvider::<span class="name">mediaAboutToBeRemoved</span> ( <span class="type">int</span> <i>start</i>, <span class="type">int</span> <i>end</i> )<tt> [signal]</tt></h3>
<p>Signals that media is about to be removed from a playlist between the <i>start</i> and <i>end</i> positions.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@mediaAboutToBeRemoved -->
<!-- $$$mediaChanged[overload1]$$$mediaChangedintint -->
<h3 class="fn"><a name="mediaChanged"></a><span class="type">void</span> QMediaPlaylistProvider::<span class="name">mediaChanged</span> ( <span class="type">int</span> <i>start</i>, <span class="type">int</span> <i>end</i> )<tt> [signal]</tt></h3>
<p>Signals that media in playlist between the <i>start</i> and <i>end</i> positions inclusive has changed.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@mediaChanged -->
<!-- $$$mediaCount[overload1]$$$mediaCount -->
<h3 class="fn"><a name="mediaCount"></a><span class="type">int</span> QMediaPlaylistProvider::<span class="name">mediaCount</span> () const<tt> [pure virtual]</tt></h3>
<p>Returns the size of playlist.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@mediaCount -->
<!-- $$$mediaInserted[overload1]$$$mediaInsertedintint -->
<h3 class="fn"><a name="mediaInserted"></a><span class="type">void</span> QMediaPlaylistProvider::<span class="name">mediaInserted</span> ( <span class="type">int</span> <i>start</i>, <span class="type">int</span> <i>end</i> )<tt> [signal]</tt></h3>
<p>Signals that new media has been inserted into a playlist between the <i>start</i> and <i>end</i> positions.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@mediaInserted -->
<!-- $$$mediaRemoved[overload1]$$$mediaRemovedintint -->
<h3 class="fn"><a name="mediaRemoved"></a><span class="type">void</span> QMediaPlaylistProvider::<span class="name">mediaRemoved</span> ( <span class="type">int</span> <i>start</i>, <span class="type">int</span> <i>end</i> )<tt> [signal]</tt></h3>
<p>Signals that media has been removed from a playlist between the <i>start</i> and <i>end</i> positions.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@mediaRemoved -->
<!-- $$$removeMedia[overload1]$$$removeMediaint -->
<h3 class="fn"><a name="removeMedia"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">removeMedia</span> ( <span class="type">int</span> <i>position</i> )<tt> [virtual]</tt></h3>
<p>Removes the media at <i>position</i> from a playlist.</p>
<p>Returns true if the media was removed; and false otherwise.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@removeMedia -->
<!-- $$$removeMedia$$$removeMediaintint -->
<h3 class="fn"><a name="removeMedia-2"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">removeMedia</span> ( <span class="type">int</span> <i>start</i>, <span class="type">int</span> <i>end</i> )<tt> [virtual]</tt></h3>
<p>Removes the media between the given <i>start</i> and <i>end</i> positions from a playlist.</p>
<p>Returns true if the media was removed; and false otherwise.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@removeMedia -->
<!-- $$$save[overload1]$$$saveconstQUrl&constchar* -->
<h3 class="fn"><a name="save"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">save</span> ( const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qurl.html">QUrl</a></span> &amp; <i>location</i>, const <span class="type">char</span> * <i>format</i> = 0 )<tt> [virtual]</tt></h3>
<p>Saves the contents of a playlist to a URL <i>location</i>. If no playlist <i>format</i> is specified the writer will inspect the URL to guess the format.</p>
<p>Returns true if the playlist was saved successfully; and false otherwise.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@save -->
<!-- $$$save$$$saveQIODevice*constchar* -->
<h3 class="fn"><a name="save-2"></a><span class="type">bool</span> QMediaPlaylistProvider::<span class="name">save</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qiodevice.html">QIODevice</a></span> * <i>device</i>, const <span class="type">char</span> * <i>format</i> )<tt> [virtual]</tt></h3>
<p>Saves the contents of a playlist to an I/O <i>device</i> in the specified <i>format</i>.</p>
<p>Returns true if the playlist was saved successfully; and false otherwise.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@save -->
<!-- $$$shuffle[overload1]$$$shuffle -->
<h3 class="fn"><a name="shuffle"></a><span class="type">void</span> QMediaPlaylistProvider::<span class="name">shuffle</span> ()<tt> [virtual slot]</tt></h3>
<p>Shuffles the contents of a playlist.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@shuffle -->
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