Sophie

Sophie

distrib > Mageia > 7 > armv7hl > media > core-updates > by-pkgid > 1680fb88efc4e76ac8cb0ebf3578014f > files > 235

qtmultimedia5-doc-5.12.6-1.mga7.noarch.rpm

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- qmediastreamscontrol.cpp -->
  <title>QMediaStreamsControl Class | Qt Multimedia 5.12.6</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 >QMediaStreamsControl</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtmultimedia-index.html">Qt 5.12.6 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-types">Public Types</a></li>
<li class="level1"><a href="#public-functions">Public Functions</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">QMediaStreamsControl Class</h1>
<!-- $$$QMediaStreamsControl-brief -->
<p>The <a href="qmediastreamscontrol.html">QMediaStreamsControl</a> class provides a media stream selection control. <a href="#details">More...</a></p>
<!-- @@@QMediaStreamsControl -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QMediaStreamsControl&gt;</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="qmediastreamscontrol-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-types"></a>
<h2 id="public-types">Public Types</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qmediastreamscontrol.html#StreamType-enum">StreamType</a></b> { AudioStream, VideoStream, SubPictureStream, UnknownStream, DataStream }</td></tr>
</table></div>
<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="qmediastreamscontrol.html#dtor.QMediaStreamsControl">~QMediaStreamsControl</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qmediastreamscontrol.html#isActive">isActive</a></b>(int <i>streamNumber</i>) = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QVariant </td><td class="memItemRight bottomAlign"><b><a href="qmediastreamscontrol.html#metaData">metaData</a></b>(int <i>streamNumber</i>, const QString &amp;<i>key</i>) = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qmediastreamscontrol.html#setActive">setActive</a></b>(int <i>streamNumber</i>, bool <i>state</i>) = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual int </td><td class="memItemRight bottomAlign"><b><a href="qmediastreamscontrol.html#streamCount">streamCount</a></b>() = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QMediaStreamsControl::StreamType </td><td class="memItemRight bottomAlign"><b><a href="qmediastreamscontrol.html#streamType">streamType</a></b>(int <i>streamNumber</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="qmediastreamscontrol.html#activeStreamsChanged">activeStreamsChanged</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediastreamscontrol.html#streamsChanged">streamsChanged</a></b>()</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="qmediastreamscontrol.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="qmediastreamscontrol.html#QMediaStreamsControl">QMediaStreamsControl</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="qmediastreamscontrol.html#QMediaStreamsControl_iid">QMediaStreamsControl_iid</a></b></td></tr>
</table></div>
<a name="details"></a>
<!-- $$$QMediaStreamsControl-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qmediastreamscontrol.html">QMediaStreamsControl</a> class provides a media stream selection control.</p>
<p>The <a href="qmediastreamscontrol.html">QMediaStreamsControl</a> class provides descriptions of the available media streams and allows individual streams to be activated and deactivated.</p>
<p>The interface name of <a href="qmediastreamscontrol.html">QMediaStreamsControl</a> is <code>org.qt-project.qt.mediastreamscontrol/5.0</code> as defined in <a href="qmediastreamscontrol.html#QMediaStreamsControl_iid">QMediaStreamsControl_iid</a>.</p>
</div>
<p><b>See also </b><a href="qmediaservice.html#requestControl-1">QMediaService::requestControl</a>().</p>
<!-- @@@QMediaStreamsControl -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$StreamType$$$UnknownStream$$$VideoStream$$$AudioStream$$$SubPictureStream$$$DataStream -->
<h3 class="fn" id="StreamType-enum"><a name="StreamType-enum"></a>enum QMediaStreamsControl::<span class="name">StreamType</span></h3>
<p>Media stream type.</p>
<div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><code>QMediaStreamsControl::AudioStream</code></td><td class="topAlign tblval"><code>2</code></td><td class="topAlign">Audio stream.</td></tr>
<tr><td class="topAlign"><code>QMediaStreamsControl::VideoStream</code></td><td class="topAlign tblval"><code>1</code></td><td class="topAlign">Video stream.</td></tr>
<tr><td class="topAlign"><code>QMediaStreamsControl::SubPictureStream</code></td><td class="topAlign tblval"><code>3</code></td><td class="topAlign">Subpicture or teletext stream.</td></tr>
<tr><td class="topAlign"><code>QMediaStreamsControl::UnknownStream</code></td><td class="topAlign tblval"><code>0</code></td><td class="topAlign">The stream type is unknown.</td></tr>
<tr><td class="topAlign"><code>QMediaStreamsControl::DataStream</code></td><td class="topAlign tblval"><code>4</code></td><td class="topAlign">&nbsp;</td></tr>
</table></div>
<!-- @@@StreamType -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QMediaStreamsControl[overload1]$$$QMediaStreamsControlQObject* -->
<h3 class="fn" id="QMediaStreamsControl"><a name="QMediaStreamsControl"></a><code>[protected] </code>QMediaStreamsControl::<span class="name">QMediaStreamsControl</span>(<span class="type">QObject</span> *<i>parent</i> = nullptr)</h3>
<p>Constructs a new media streams control with the given <i>parent</i>.</p>
<!-- @@@QMediaStreamsControl -->
<!-- $$$~QMediaStreamsControl[overload1]$$$~QMediaStreamsControl -->
<h3 class="fn" id="dtor.QMediaStreamsControl"><a name="dtor.QMediaStreamsControl"></a><code>[virtual] </code>QMediaStreamsControl::<span class="name">~QMediaStreamsControl</span>()</h3>
<p>Destroys a media streams control.</p>
<!-- @@@~QMediaStreamsControl -->
<!-- $$$activeStreamsChanged[overload1]$$$activeStreamsChanged -->
<h3 class="fn" id="activeStreamsChanged"><a name="activeStreamsChanged"></a><code>[signal] </code><span class="type">void</span> QMediaStreamsControl::<span class="name">activeStreamsChanged</span>()</h3>
<p>The signal is emitted when the active streams list is changed.</p>
<!-- @@@activeStreamsChanged -->
<!-- $$$isActive[overload1]$$$isActiveint -->
<h3 class="fn" id="isActive"><a name="isActive"></a><code>[pure virtual] </code><span class="type">bool</span> QMediaStreamsControl::<span class="name">isActive</span>(<span class="type">int</span> <i>streamNumber</i>)</h3>
<p>Returns true if the media stream <i>streamNumber</i> is active.</p>
<!-- @@@isActive -->
<!-- $$$metaData[overload1]$$$metaDataintconstQString& -->
<h3 class="fn" id="metaData"><a name="metaData"></a><code>[pure virtual] </code><span class="type">QVariant</span> QMediaStreamsControl::<span class="name">metaData</span>(<span class="type">int</span> <i>streamNumber</i>, const <span class="type">QString</span> &amp;<i>key</i>)</h3>
<p>Returns the meta-data value of <i>key</i> for the given <i>streamNumber</i>.</p>
<p>Useful metadata keys are <a href="qmediametadata.html#Title-var">QMediaMetaData::Title</a>, <a href="qmediametadata.html#Description-var">QMediaMetaData::Description</a> and <a href="qmediametadata.html#Language-var">QMediaMetaData::Language</a>.</p>
<!-- @@@metaData -->
<!-- $$$setActive[overload1]$$$setActiveintbool -->
<h3 class="fn" id="setActive"><a name="setActive"></a><code>[pure virtual] </code><span class="type">void</span> QMediaStreamsControl::<span class="name">setActive</span>(<span class="type">int</span> <i>streamNumber</i>, <span class="type">bool</span> <i>state</i>)</h3>
<p>Sets the active <i>state</i> of media stream <i>streamNumber</i>.</p>
<p>Setting the active state of a media stream to true will activate it. If any other stream of the same type was previously active it will be deactivated. Setting the active state fo a media stream to false will deactivate it.</p>
<p><b>See also </b><a href="qmediastreamscontrol.html#isActive">isActive</a>().</p>
<!-- @@@setActive -->
<!-- $$$streamCount[overload1]$$$streamCount -->
<h3 class="fn" id="streamCount"><a name="streamCount"></a><code>[pure virtual] </code><span class="type">int</span> QMediaStreamsControl::<span class="name">streamCount</span>()</h3>
<p>Returns the number of media streams.</p>
<!-- @@@streamCount -->
<!-- $$$streamType[overload1]$$$streamTypeint -->
<h3 class="fn" id="streamType"><a name="streamType"></a><code>[pure virtual] </code><span class="type"><a href="qmediastreamscontrol.html#StreamType-enum">QMediaStreamsControl::StreamType</a></span> QMediaStreamsControl::<span class="name">streamType</span>(<span class="type">int</span> <i>streamNumber</i>)</h3>
<p>Return the type of media stream <i>streamNumber</i>.</p>
<!-- @@@streamType -->
<!-- $$$streamsChanged[overload1]$$$streamsChanged -->
<h3 class="fn" id="streamsChanged"><a name="streamsChanged"></a><code>[signal] </code><span class="type">void</span> QMediaStreamsControl::<span class="name">streamsChanged</span>()</h3>
<p>The signal is emitted when the available streams list is changed.</p>
<!-- @@@streamsChanged -->
</div>
<div class="macros">
<h2>Macro Documentation</h2>
<!-- $$$QMediaStreamsControl_iid[overload1]$$$QMediaStreamsControl_iid -->
<h3 class="fn" id="QMediaStreamsControl_iid"><a name="QMediaStreamsControl_iid"></a><span class="name">QMediaStreamsControl_iid</span></h3>
<p><code>org.qt-project.qt.mediastreamscontrol/5.0</code></p>
<p>Defines the interface name of the <a href="qmediastreamscontrol.html">QMediaStreamsControl</a> class.</p>
<!-- @@@QMediaStreamsControl_iid -->
</div>
        </div>
       </div>
   </div>
   </div>
</div>
<div class="footer">
   <p>
   <acronym title="Copyright">&copy;</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>

Perl :: Catalyst :: PostgreSQL :: RPM Valid HTML 4.01 Transitional