初始化内容

third/rtmidi/tests/midiprobe.cpp

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+// midiprobe.cpp
+//
+// Simple program to check MIDI inputs and outputs.
+//
+// by Gary Scavone, 2003-2012.
+
+#include <iostream>
+#include <cstdlib>
+#include <map>
+#include "RtMidi.h"
+
+int main()
+{
+  // Create an api map.
+  std::map<int, std::string> apiMap;
+  apiMap[RtMidi::MACOSX_CORE] = "OS-X CoreMIDI";
+  apiMap[RtMidi::WINDOWS_MM] = "Windows MultiMedia";
+  apiMap[RtMidi::WINDOWS_UWP] = "Windows UWP";
+  apiMap[RtMidi::UNIX_JACK] = "Jack Client";
+  apiMap[RtMidi::LINUX_ALSA] = "Linux ALSA";
+  apiMap[RtMidi::RTMIDI_DUMMY] = "RtMidi Dummy";
+
+  std::vector< RtMidi::Api > apis;
+  RtMidi :: getCompiledApi( apis );
+
+  std::cout << "\nCompiled APIs:\n";
+  for ( unsigned int i=0; i<apis.size(); i++ )
+    std::cout << "  " << apiMap[ apis[i] ] << std::endl;
+  std::cout << std::endl;
+
+  for ( unsigned int i=0; i<apis.size(); i++ ){
+    std::cout << "Probing with API " << apiMap[ apis[i] ] << std::endl;
+
+    RtMidiIn  *midiin = 0;
+    RtMidiOut *midiout = 0;
+
+    try {
+
+      // RtMidiIn constructor ... exception possible
+      midiin = new RtMidiIn(apis[i]);
+
+      std::cout << "\nCurrent input API: " << apiMap[ midiin->getCurrentApi() ] << std::endl;
+
+      // Check inputs.
+      unsigned int nPorts = midiin->getPortCount();
+      std::cout << "\nThere are " << nPorts << " MIDI input sources available.\n";
+
+      for ( unsigned i=0; i<nPorts; i++ ) {
+        std::string portName = midiin->getPortName(i);
+        std::cout << "  Input Port #" << i << ": " << portName << '\n';
+      }
+
+      // RtMidiOut constructor ... exception possible
+      midiout = new RtMidiOut(apis[i]);
+
+      std::cout << "\nCurrent output API: " << apiMap[ midiout->getCurrentApi() ] << std::endl;
+
+      // Check outputs.
+      nPorts = midiout->getPortCount();
+      std::cout << "\nThere are " << nPorts << " MIDI output ports available.\n";
+
+      for ( unsigned i=0; i<nPorts; i++ ) {
+        std::string portName = midiout->getPortName(i);
+        std::cout << "  Output Port #" << i << ": " << portName << std::endl;
+      }
+      std::cout << std::endl;
+
+    } catch ( RtMidiError &error ) {
+      error.printMessage();
+    }
+
+    delete midiin;
+    delete midiout;
+  }
+
+  return 0;
+}