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/*Script that transforms control change 119 into a program change 
with user definable channel number and program change number and filter all other midi events
*/
var PluginParameters = [
{       name: "Channel",
        type: "valueStrings",
        defaultValue: 1,
        minValue: 1,
        maxValue: 16,
        numberOfSteps: 15},
{       name: "Program #",
        type: "valueStrings",
        defaultValue: 0,
        minValue: 0,
        maxValue: 127,
        numberOfSteps: 127
}];

function HandleMIDI(recall) {
    if (recall instanceof ControlChange && recall.number == 119) {
        var p = new ProgramChange; //generates program change message and saves as "p"
        var prog = GetParameter("Program #") //retrieves program number from user input and saves to "prog"
        var chan = GetParameter("Channel") //retrieves channel number from user input and saves to "chan"
        p.channel = chan //sets program change to "prog"
        p.number = prog //sets program change channel to "chan"
        recall.trace(); //filters out all other midi messages
        p.send(); //sends out only channel and program change # 
    } 
    else {
        recall.send();
    }
}