main.js

const {app, BrowserWindow} = require('electron')
const path = require('path')
const url = require('url')
const edge = require('electron-edge')

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let win

function createWindow () {
  // Create the browser window.
  win = new BrowserWindow({width: 800, height: 600})

  // and load the index.html of the app.
  win.loadURL(url.format({
    pathname: path.join(__dirname, 'index.html'),
    protocol: 'file:',
    slashes: true
  }))

  // Open the DevTools.
  win.webContents.openDevTools()

  // Emitted when the window is closed.
  win.on('closed', () => {
    // Dereference the window object, usually you would store windows
    // in an array if your app supports multi windows, this is the time
    // when you should delete the corresponding element.
    win = null
  })
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow)

// Quit when all windows are closed.
app.on('window-all-closed', () => {
  // On macOS it is common for applications and their menu bar
  // to stay active until the user quits explicitly with Cmd + Q
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

app.on('activate', () => {
  // On macOS it's common to re-create a window in the app when the
  // dock icon is clicked and there are no other windows open.
  if (win === null) {
    createWindow()
  }
})

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.

var add7 = edge.func({
    source: function() {/*
        // System.dll
        using System;

        // System.Core.dll
        using System.Threading.Tasks;
        using System.Collections.Generic;
        using System.ComponentModel;
        using System.Linq;
        using System.IO;

        // Interop.SldWorks.dll
        using SldWorks;

        // Interop.SwConst.dll
        using SwConst;

        // Interop.SwConst.dll
        using SwCommands;

        public class Startup
        {
            public async Task<object> Invoke(object input)
            {
                int a;
                a = 5;
                return a;
            }
        }
    */},
    references: [
      'System.dll',
      'System.Core.dll',
      'Interop.SldWorks.dll',
      'Interop.SwCommands.dll',
      'Interop.SwConst.dll',
    //'SldWorks',
    //'SwConst',
    //'SwCommands'
  ]
});