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| <html> | |
| <head> | |
| <title>WebMIDI Demo</title> | |
| </head> | |
| <body> | |
| <textarea id="out" cols="120" rows="40"></textarea> | |
| <script type="text/javascript"> | |
| function write(text) { | |
| var out = document.getElementById('out'); | |
| out.value += text + '\n'; | |
| out.scrollTop = out.scrollHeight; | |
| } | |
| function msg(event) { | |
| // meaning of 3 bytes: http://www.indiana.edu/~emusic/etext/MIDI/chapter3_MIDI4.shtml | |
| write(event.receivedTime + " " + event.data[0] + " " + event.data[1] + " " + event.data[2]); | |
| } | |
| navigator.requestMIDIAccess().then( | |
| function(access) { | |
| var inputs = access.inputs(); | |
| if (inputs.length < 1) { | |
| console.log('no midi inputs found'); | |
| return; | |
| } | |
| var input = inputs[0]; | |
| input.onmidimessage = msg; | |
| console.log('ready', input); | |
| }, | |
| function() { | |
| console.log('error'); | |
| } | |
| ); | |
| </script> | |
| </body> | |
| </html> |
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