<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qmediarecordercontrol.cpp --> <title>QMediaRecorderControl Class | Qt Multimedia 5.12.2</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtmultimedia-index.html">Qt Multimedia</a></td><td ><a href="qtmultimedia-modules.html">C++ Classes</a></td><td >QMediaRecorderControl</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtmultimedia-index.html">Qt 5.12.2 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"> <div class="toc"> <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="#static-public-members">Static Public Members</a></li> <li class="level1"><a href="#protected-functions">Protected Functions</a></li> <li class="level1"><a href="#macros">Macros</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">QMediaRecorderControl Class</h1> <!-- $$$QMediaRecorderControl-brief --> <p>The <a href="qmediarecordercontrol.html">QMediaRecorderControl</a> class provides access to the recording functionality of a <a href="qmediaservice.html">QMediaService</a>. <a href="#details">More...</a></p> <!-- @@@QMediaRecorderControl --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QMediaRecorderControl></span> </td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += multimedia</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qmediacontrol.html">QMediaControl</a></td></tr></table></div><ul> <li><a href="qmediarecordercontrol-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-functions"></a> <h2 id="public-functions">Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> virtual </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#dtor.QMediaRecorderControl">~QMediaRecorderControl</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#applySettings">applySettings</a></b>() = 0</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual qint64 </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#duration">duration</a></b>() const = 0</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#isMuted">isMuted</a></b>() const = 0</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual QUrl </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#outputLocation">outputLocation</a></b>() const = 0</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#setOutputLocation">setOutputLocation</a></b>(const QUrl &<i>location</i>) = 0</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual QMediaRecorder::State </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#state">state</a></b>() const = 0</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual QMediaRecorder::Status </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#status">status</a></b>() const = 0</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual qreal </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#volume">volume</a></b>() const = 0</td></tr> </table></div> <a name="public-slots"></a> <h2 id="public-slots">Public Slots</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#setMuted">setMuted</a></b>(bool <i>muted</i>) = 0</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#setState">setState</a></b>(QMediaRecorder::State <i>state</i>) = 0</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#setVolume">setVolume</a></b>(qreal <i>volume</i>) = 0</td></tr> </table></div> <a name="signals"></a> <h2 id="signals">Signals</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#actualLocationChanged">actualLocationChanged</a></b>(const QUrl &<i>location</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#durationChanged">durationChanged</a></b>(qint64 <i>position</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#error">error</a></b>(int <i>error</i>, const QString &<i>errorString</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#mutedChanged">mutedChanged</a></b>(bool <i>muted</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#stateChanged">stateChanged</a></b>(QMediaRecorder::State <i>state</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#statusChanged">statusChanged</a></b>(QMediaRecorder::Status <i>status</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#volumeChanged">volumeChanged</a></b>(qreal <i>volume</i>)</td></tr> </table></div> <a name="static-public-members"></a> <h2 id="static-public-members">Static Public Members</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> const QMetaObject </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#staticMetaObject-var">staticMetaObject</a></b></td></tr> </table></div> <a name="protected-functions"></a> <h2 id="protected-functions">Protected Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#QMediaRecorderControl">QMediaRecorderControl</a></b>(QObject *<i>parent</i> = nullptr)</td></tr> </table></div> <a name="macros"></a> <h2 id="macros">Macros</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediarecordercontrol.html#QMediaRecorderControl_iid">QMediaRecorderControl_iid</a></b></td></tr> </table></div> <a name="details"></a> <!-- $$$QMediaRecorderControl-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p>The <a href="qmediarecordercontrol.html">QMediaRecorderControl</a> class provides access to the recording functionality of a <a href="qmediaservice.html">QMediaService</a>.</p> <p>Generally you will use the <a href="qmediarecorder.html">QMediaRecorder</a> class in application code - this class is mostly used when implementing a new <a href="qmediaservice.html">QMediaService</a> or if there is access to specific low level functionality not otherwise present in <a href="qmediarecorder.html">QMediaRecorder</a>.</p> <p>If a <a href="qmediaservice.html">QMediaService</a> can record media it will implement <a href="qmediarecordercontrol.html">QMediaRecorderControl</a>. This control provides a means to set the <a href="qmediarecordercontrol.html#outputLocation">output location</a>, and record, pause and stop recording via the <a href="qmediarecordercontrol.html#setState">setState</a>() method. It also provides feedback on the <a href="qmediarecordercontrol.html#duration">duration</a> of the recording.</p> <p>The interface name of <a href="qmediarecordercontrol.html">QMediaRecorderControl</a> is <code>org.qt-project.qt.mediarecordercontrol/5.0</code> as defined in <a href="qmediarecordercontrol.html#QMediaRecorderControl_iid">QMediaRecorderControl_iid</a>.</p> </div> <p><b>See also </b><a href="qmediaservice.html#requestControl-1">QMediaService::requestControl</a>() and <a href="qmediarecorder.html">QMediaRecorder</a>.</p> <!-- @@@QMediaRecorderControl --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QMediaRecorderControl[overload1]$$$QMediaRecorderControlQObject* --> <h3 class="fn" id="QMediaRecorderControl"><a name="QMediaRecorderControl"></a><code>[protected] </code>QMediaRecorderControl::<span class="name">QMediaRecorderControl</span>(<span class="type">QObject</span> *<i>parent</i> = nullptr)</h3> <p>Constructs a media recorder control with the given <i>parent</i>.</p> <!-- @@@QMediaRecorderControl --> <!-- $$$~QMediaRecorderControl[overload1]$$$~QMediaRecorderControl --> <h3 class="fn" id="dtor.QMediaRecorderControl"><a name="dtor.QMediaRecorderControl"></a><code>[virtual] </code>QMediaRecorderControl::<span class="name">~QMediaRecorderControl</span>()</h3> <p>Destroys a media recorder control.</p> <!-- @@@~QMediaRecorderControl --> <!-- $$$actualLocationChanged[overload1]$$$actualLocationChangedconstQUrl& --> <h3 class="fn" id="actualLocationChanged"><a name="actualLocationChanged"></a><code>[signal] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">actualLocationChanged</span>(const <span class="type">QUrl</span> &<i>location</i>)</h3> <!-- @@@actualLocationChanged --> <!-- $$$applySettings[overload1]$$$applySettings --> <h3 class="fn" id="applySettings"><a name="applySettings"></a><code>[pure virtual] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">applySettings</span>()</h3> <!-- @@@applySettings --> <!-- $$$duration[overload1]$$$duration --> <h3 class="fn" id="duration"><a name="duration"></a><code>[pure virtual] </code><span class="type">qint64</span> QMediaRecorderControl::<span class="name">duration</span>() const</h3> <!-- @@@duration --> <!-- $$$durationChanged[overload1]$$$durationChangedqint64 --> <h3 class="fn" id="durationChanged"><a name="durationChanged"></a><code>[signal] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">durationChanged</span>(<span class="type">qint64</span> <i>position</i>)</h3> <!-- @@@durationChanged --> <!-- $$$error[overload1]$$$errorintconstQString& --> <h3 class="fn" id="error"><a name="error"></a><code>[signal] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">error</span>(<span class="type">int</span> <i>error</i>, const <span class="type">QString</span> &<i>errorString</i>)</h3> <!-- @@@error --> <!-- $$$isMuted[overload1]$$$isMuted --> <h3 class="fn" id="isMuted"><a name="isMuted"></a><code>[pure virtual] </code><span class="type">bool</span> QMediaRecorderControl::<span class="name">isMuted</span>() const</h3> <!-- @@@isMuted --> <!-- $$$mutedChanged[overload1]$$$mutedChangedbool --> <h3 class="fn" id="mutedChanged"><a name="mutedChanged"></a><code>[signal] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">mutedChanged</span>(<span class="type">bool</span> <i>muted</i>)</h3> <!-- @@@mutedChanged --> <!-- $$$outputLocation[overload1]$$$outputLocation --> <h3 class="fn" id="outputLocation"><a name="outputLocation"></a><code>[pure virtual] </code><span class="type">QUrl</span> QMediaRecorderControl::<span class="name">outputLocation</span>() const</h3> <p><b>See also </b><a href="qmediarecordercontrol.html#setOutputLocation">setOutputLocation</a>().</p> <!-- @@@outputLocation --> <!-- $$$setMuted[overload1]$$$setMutedbool --> <h3 class="fn" id="setMuted"><a name="setMuted"></a><code>[pure virtual slot] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">setMuted</span>(<span class="type">bool</span> <i>muted</i>)</h3> <p><b>See also </b><a href="qmediarecordercontrol.html#isMuted">isMuted</a>().</p> <!-- @@@setMuted --> <!-- $$$setOutputLocation[overload1]$$$setOutputLocationconstQUrl& --> <h3 class="fn" id="setOutputLocation"><a name="setOutputLocation"></a><code>[pure virtual] </code><span class="type">bool</span> QMediaRecorderControl::<span class="name">setOutputLocation</span>(const <span class="type">QUrl</span> &<i>location</i>)</h3> <p><b>See also </b><a href="qmediarecordercontrol.html#outputLocation">outputLocation</a>().</p> <!-- @@@setOutputLocation --> <!-- $$$setState[overload1]$$$setStateQMediaRecorder::State --> <h3 class="fn" id="setState"><a name="setState"></a><code>[pure virtual slot] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">setState</span>(<span class="type"><a href="qmediarecorder.html#State-enum">QMediaRecorder::State</a></span> <i>state</i>)</h3> <p><b>See also </b><a href="qmediarecordercontrol.html#state">state</a>().</p> <!-- @@@setState --> <!-- $$$setVolume[overload1]$$$setVolumeqreal --> <h3 class="fn" id="setVolume"><a name="setVolume"></a><code>[pure virtual slot] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">setVolume</span>(<span class="type">qreal</span> <i>volume</i>)</h3> <p><b>See also </b><a href="qmediarecordercontrol.html#volume">volume</a>().</p> <!-- @@@setVolume --> <!-- $$$state[overload1]$$$state --> <h3 class="fn" id="state"><a name="state"></a><code>[pure virtual] </code><span class="type"><a href="qmediarecorder.html#State-enum">QMediaRecorder::State</a></span> QMediaRecorderControl::<span class="name">state</span>() const</h3> <p><b>See also </b><a href="qmediarecordercontrol.html#setState">setState</a>().</p> <!-- @@@state --> <!-- $$$stateChanged[overload1]$$$stateChangedQMediaRecorder::State --> <h3 class="fn" id="stateChanged"><a name="stateChanged"></a><code>[signal] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">stateChanged</span>(<span class="type"><a href="qmediarecorder.html#State-enum">QMediaRecorder::State</a></span> <i>state</i>)</h3> <!-- @@@stateChanged --> <!-- $$$status[overload1]$$$status --> <h3 class="fn" id="status"><a name="status"></a><code>[pure virtual] </code><span class="type"><a href="qmediarecorder.html#Status-enum">QMediaRecorder::Status</a></span> QMediaRecorderControl::<span class="name">status</span>() const</h3> <!-- @@@status --> <!-- $$$statusChanged[overload1]$$$statusChangedQMediaRecorder::Status --> <h3 class="fn" id="statusChanged"><a name="statusChanged"></a><code>[signal] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">statusChanged</span>(<span class="type"><a href="qmediarecorder.html#Status-enum">QMediaRecorder::Status</a></span> <i>status</i>)</h3> <!-- @@@statusChanged --> <!-- $$$volume[overload1]$$$volume --> <h3 class="fn" id="volume"><a name="volume"></a><code>[pure virtual] </code><span class="type">qreal</span> QMediaRecorderControl::<span class="name">volume</span>() const</h3> <p><b>See also </b><a href="qmediarecordercontrol.html#setVolume">setVolume</a>().</p> <!-- @@@volume --> <!-- $$$volumeChanged[overload1]$$$volumeChangedqreal --> <h3 class="fn" id="volumeChanged"><a name="volumeChanged"></a><code>[signal] </code><span class="type">void</span> QMediaRecorderControl::<span class="name">volumeChanged</span>(<span class="type">qreal</span> <i>volume</i>)</h3> <!-- @@@volumeChanged --> </div> <div class="macros"> <h2>Macro Documentation</h2> <!-- $$$QMediaRecorderControl_iid[overload1]$$$QMediaRecorderControl_iid --> <h3 class="fn" id="QMediaRecorderControl_iid"><a name="QMediaRecorderControl_iid"></a><span class="name">QMediaRecorderControl_iid</span></h3> <p><code>org.qt-project.qt.mediarecordercontrol/5.0</code></p> <p>Defines the interface name of the <a href="qmediarecordercontrol.html">QMediaRecorderControl</a> class.</p> <!-- @@@QMediaRecorderControl_iid --> </div> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>