Midi CC toggle button

Anyone?

Hey @Dryw_Owens,

Sorry it took a while to get to this one. I'm happy to help.

Here is a script that will toggle between two CC values. I've set it up so that it does so between 0 and 127 on CC64 (Sustain Pedal).

Feel free to adjust the rest of the settings to your liking at the bottom of the script:

/**
 * @param {{ 
 *   outputNum: number, 
 *   midiChannel: number, 
 *   midiCC: number, 
 *   minValue: number, 
 *   maxValue: number 
 * }} args 
 */
function toggleMidiCC({ outputNum, midiChannel, midiCC, minValue, maxValue }) {
    const id = `${outputNum}_${midiChannel}_${midiCC}`;

    // Initialize state
    if (globalState.toggleMidiCC === undefined) {
        globalState.toggleMidiCC = {};
    }

    if (globalState.toggleMidiCC[id] === undefined) {
        globalState.toggleMidiCC[id] = { isOn: false };
    }

    const state = globalState.toggleMidiCC[id];

    // Flip the toggle
    state.isOn = !state.isOn;

    // Send the corresponding CC value
    sf.midi.sendCC({
        outputNum,
        midiChannel,
        midiCC,
        value: state.isOn ? maxValue : minValue
    });

    return { state };
}

toggleMidiCC({
    outputNum: 1,
    midiChannel: 1,
    midiCC: 64,
    minValue: 0,
    maxValue: 127
});

Regarding your second inquiry, unfortunately it is currently not possible to have different images on a button to reflect state.

It is a feature that is requested often though, so please make sure to like and comment on the following link to keep bringing attention to it and hopefully have it implemented soon!