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+<h1>miditime.cpp</h1><div class="fragment"><pre>00001 <span class="comment">// miditime.cpp</span>
+00002 <span class="comment">//</span>
+00003 <span class="comment">// Simple program to output MIDI to the default port.</span>
+00004 <span class="comment">//</span>
+00005 <span class="comment">// by Gary Scavone, 2003.</span>
+00006 <span class="comment">//</span>
+00007 <span class="comment">// compile: g++ -Wall -o miditime miditime.cpp RtMidi.cpp -framework CoreMIDI -framework CoreFoundation -framework CoreAudio</span>
+00008
+00009 <span class="preprocessor">#include <iostream></span>
+00010 <span class="preprocessor">#include <unistd.h></span>
+00011 <span class="preprocessor">#include <signal.h></span>
+00012 <span class="preprocessor">#include "RtMidi.h"</span>
+00013
+00014 <span class="keywordtype">bool</span> done;
+00015 <span class="keyword">static</span> <span class="keywordtype">void</span> finish(<span class="keywordtype">int</span> ignore){ done = <span class="keyword">true</span>; }
+00016
+00017 <span class="keywordtype">int</span> main()
+00018 {
+00019 <span class="keyword">using</span> <span class="keyword">namespace </span>std;
+00020 <a class="code" href="classRtMidi.html">RtMidi</a> midi( RtMidi::ABSOLUTE_TIME );
+00021
+00022 <span class="keywordflow">if</span> ( midi.getPortCount( RtMidi::MIDI_OUTPUT ) < 1 ) {
+00023 cout << <span class="stringliteral">"\nThere are no MIDI output destinations available!\n"</span>;
+00024 exit(0);
+00025 }
+00026
+00027 <span class="keywordflow">try</span> {
+00028 midi.openPort( RtMidi::MIDI_OUTPUT );
+00029 }
+00030 <span class="keywordflow">catch</span> ( <a class="code" href="classRtError.html">RtError</a> & ) {
+00031 <span class="comment">// You might want to do something more useful here.</span>
+00032 cout << <span class="stringliteral">"\nAborting program!\n"</span>;
+00033 midi.closePort();
+00034 exit(0);
+00035 }
+00036
+00037 <span class="comment">// Install an interrupt handler function.</span>
+00038 (void) signal(SIGINT, finish);
+00039
+00040 RtMidi::MidiMessage message;
+00041 message.bytes.push_back( 144 );
+00042 message.bytes.push_back( 64 );
+00043 message.bytes.push_back( 80 );
+00044
+00045 cout << <span class="stringliteral">"Scheduling for 1 second later ..."</span> << endl;
+00046 timeval tvTime;
+00047 <span class="keywordflow">if</span> ( gettimeofday( &tvTime, NULL ) == 0 ) {
+00048 message.timeStamp = (double) tvTime.tv_sec + 1.0;
+00049 message.timeStamp += (double) (tvTime.tv_usec * 0.000001);
+00050 }
+00051 <span class="comment">//message.timeStamp = 1.0;</span>
+00052 midi.sendMessage( &message );
+00053
+00054 <span class="comment">// Sleep for 0.5 seconds.</span>
+00055 usleep( 1000000 );
+00056
+00057 cout << <span class="stringliteral">"1 second has passed ..."</span> << endl;
+00058
+00059 <span class="comment">// Sleep another 1.0 seconds.</span>
+00060 usleep( 1000000 );
+00061
+00062 cout << <span class="stringliteral">"Turning note off ... "</span>;
+00063
+00064 <span class="comment">// Turn the note off.</span>
+00065 message.timeStamp = 0.0;
+00066 message.bytes[2] = 0;
+00067 midi.sendMessage( &message );
+00068
+00069 midi.closePort();
+00070
+00071 cout << <span class="stringliteral">"Goodbye!"</span> << endl;
+00072 <span class="keywordflow">return</span> 0;
+00073 }
+</pre></div><HR>
+
+<table>
+ <tr><td><A HREF="http://www-ccrma.stanford.edu/software/stk/"><I>The Synthesis ToolKit in C++ (STK)</I></A></td></tr>
+ <tr><td>©1995-2002 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
+</table>
+
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