testExportMidi.qml

import QtQuick 2.2
import MuseScore 3.0

MuseScore {
    menuPath: "Plugins.MIDI Exporter"
    description: "Export MIDI for REAPER"
    id: exportMidi
    version: "2.0"

    Component.onCompleted: {
        if (mscoreMajorVersion >= 4) {
            some_id.title = "MIDI Exporter";
            //            some_id.thumbnailName = "thumbnail.png";
            some_id.categoryCode = "composing-arranging-tools";
        }
    }

    onRun: {

        //    curScore.startCmd();

        var s = curScore;
        var p = curScore.path;
        p = p.slice(0, -5);
        p = p.replace(/\//gi, "\\");

        writeScore(s, p, 'mid');

        console.log(p);

        //    curScore.endCmd();

        //		quit(); // Not supported by MS3
    }

}