sending CC messages

[Tomartsh]

Hi,

I may be wrong as I am a newbie, but I did not see an example or documentation concerning sending out CC messages.
I can see them in an event handler though.

Is there such an example ?

Many thanks in advance,
Nino Uziel

[djipco]

You are right that there is no such example. However, the documentation for Output.sendControlChange() and OutputChannel.sendControlChange() does detail how to do it.

Here's an example that sends a coarse volume control change message to all channels of an Output:

WebMidi
  .enable()
  .then(()=> {
    const device = WebMidi.getOutputByName("Some device..."); // "device" references an 'Output' object
    device.sendControlChange("volumecoarse", 64);
  });

Of course, you need to change "Some device..." by the name of a device available on your system. A list of available devices can be obtained with console.log(WebMidi.outputs)

Here's a second example that sends a chorus level control change message to MIDI channel 10 of a specific Output:

WebMidi
  .enable()
  .then(()=> {
    const device = WebMidi.getOutputByName("Some device...");
    const instrument = device.channels[10]; // "instrument" references an 'OutputChannel' object
    instrument.sendControlChange("choruslevel", 127);
  });

Hope this helps!

[Tomartsh]

This helps a lot. Managed to make it work.
Many thanks for your prompt assistance