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<HTML>
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<TITLE>The RtMidi Tutorial</TITLE>
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<a class="qindex" href="index.html">Tutorial</a> <a class="qindex" href="annotated.html">Class/Enum List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> </CENTER>
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<h1>RtMidiOut Class Reference</h1><!-- doxytag: class="RtMidiOut" --><!-- doxytag: inherits="RtMidi" -->A realtime MIDI output class.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="RtMidi_8h-source.html">RtMidi.h</a>></code>
<p>
<p>Inheritance diagram for RtMidiOut:
<p><center><img src="classRtMidiOut.png" usemap="#RtMidiOut_map" border="0" alt=""></center>
<map name="RtMidiOut_map">
<area href="classRtMidi.html" alt="RtMidi" shape="rect" coords="0,0,67,24">
</map>
<a href="classRtMidiOut-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classRtMidiOut.html#a0">RtMidiOut</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Default constructor. <a href="#a0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a1"></a><!-- doxytag: member="RtMidiOut::~RtMidiOut" ref="a1" args="()" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classRtMidiOut.html#a1">~RtMidiOut</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">The destructor closes any open MIDI connections. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classRtMidiOut.html#a2">openPort</a> (unsigned int portNumber=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Open a MIDI output connection. <a href="#a2"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a3"></a><!-- doxytag: member="RtMidiOut::closePort" ref="a3" args="()" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classRtMidiOut.html#a3">closePort</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Close an open MIDI connection (if one exists). <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classRtMidiOut.html#a4">openVirtualPort</a> (const std::string portName=std::string("RtMidi Output"))</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Create a virtual output port, with optional name, to allow software connections (OS X and ALSA only). <a href="#a4"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a5"></a><!-- doxytag: member="RtMidiOut::getPortCount" ref="a5" args="()" -->
unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="classRtMidiOut.html#a5">getPortCount</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the number of available MIDI output ports. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classRtMidiOut.html#a6">getPortName</a> (unsigned int portNumber=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a string identifier for the specified MIDI port type and number. <a href="#a6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classRtMidiOut.html#a7">sendMessage</a> (std::vector< unsigned char > *message)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Immediately send a single message out an open MIDI output port. <a href="#a7"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A realtime MIDI output class.
<p>
This class provides a common, platform-independent API for MIDI output. It allows one to probe available MIDI output ports, to connect to one such port, and to send MIDI bytes immediately over the connection. Create multiple instances of this class to connect to more than one MIDI device at the same time.<p>
by Gary P. Scavone, 2003-2004.
<p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a0"></a><!-- doxytag: member="RtMidiOut::RtMidiOut" ref="a0" args="()" --><p>
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<td class="md" nowrap valign="top">RtMidiOut::RtMidiOut </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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<td>
<p>
Default constructor.
<p>
An exception will be thrown if a MIDI system initialization error occurs. </td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="a2"></a><!-- doxytag: member="RtMidiOut::openPort" ref="a2" args="(unsigned int portNumber=0)" --><p>
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<td class="md" nowrap valign="top">void RtMidiOut::openPort </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">unsigned int </td>
<td class="mdname1" valign="top" nowrap> <em>portNumber</em> = <code>0</code> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [virtual]</code></td>
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</td>
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<td>
</td>
<td>
<p>
Open a MIDI output connection.
<p>
An optional port number greater than 0 can be specified. Otherwise, the default or first port found is opened. An exception is thrown if an error occurs while attempting to make the port connection.
<p>
Implements <a class="el" href="classRtMidi.html#a0">RtMidi</a>. </td>
</tr>
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<a class="anchor" name="a4"></a><!-- doxytag: member="RtMidiOut::openVirtualPort" ref="a4" args="(const std::string portName=std::string("RtMidi Output"))" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top">void RtMidiOut::openVirtualPort </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const std::string </td>
<td class="mdname1" valign="top" nowrap> <em>portName</em> = <code>std::string("RtMidi Output")</code> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [virtual]</code></td>
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<td>
</td>
<td>
<p>
Create a virtual output port, with optional name, to allow software connections (OS X and ALSA only).
<p>
This function creates a virtual MIDI output port to which other software applications can connect. This type of functionality is currently only supported by the Macintosh OS-X and Linux ALSA APIs (the function does nothing with the other APIs). An exception is thrown if an error occurs while attempting to create the virtual port.
<p>
Implements <a class="el" href="classRtMidi.html#a1">RtMidi</a>. </td>
</tr>
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<a class="anchor" name="a6"></a><!-- doxytag: member="RtMidiOut::getPortName" ref="a6" args="(unsigned int portNumber=0)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="mdRow">
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<td class="md" nowrap valign="top">std::string RtMidiOut::getPortName </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">unsigned int </td>
<td class="mdname1" valign="top" nowrap> <em>portNumber</em> = <code>0</code> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [virtual]</code></td>
</tr>
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</td>
</tr>
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<table cellspacing="5" cellpadding="0" border="0">
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<td>
</td>
<td>
<p>
Return a string identifier for the specified MIDI port type and number.
<p>
An exception is thrown if an invalid port specifier is provided.
<p>
Implements <a class="el" href="classRtMidi.html#a3">RtMidi</a>. </td>
</tr>
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<a class="anchor" name="a7"></a><!-- doxytag: member="RtMidiOut::sendMessage" ref="a7" args="(std::vector< unsigned char > *message)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" nowrap valign="top">void RtMidiOut::sendMessage </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">std::vector< unsigned char > * </td>
<td class="mdname1" valign="top" nowrap> <em>message</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
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</td>
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<table cellspacing="5" cellpadding="0" border="0">
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<td>
</td>
<td>
<p>
Immediately send a single message out an open MIDI output port.
<p>
An exception is thrown if an error occurs during output or an output connection was not previously established. </td>
</tr>
</table>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="RtMidi_8h-source.html">RtMidi.h</a></ul>
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<table><tr><td><img src="../images/mcgill.gif" width=165></td>
<td>©2003-2007 Gary P. Scavone, McGill University. All Rights Reserved.<br>
Maintained by Gary P. Scavone, gary at music.mcgill.ca</td></tr>
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