js 如何调用com组件

const { app, BrowserWindow } = require('electron');
const ffi = require('ffi-napi');

app.whenReady().then(() => {
  const mainWindow = new BrowserWindow({
    webPreferences: {
      nodeIntegration: true,
      contextIsolation: false,
    },
  });

  mainWindow.loadFile('index.html');

  // 定义 COM 组件的接口
  const myComComponent = ffi.Library('path_to_your_com_dll', {
    'MethodFromCom': ['int', ['string']],
  });

  // 调用 COM 组件的方法
  const result = myComComponent.MethodFromCom('test parameter');
  console.log(result);
});

const express = require('express');
const { spawn } = require('child_process');

const app = express();

app.get('/call-com', (req, res) => {
  const comProcess = spawn('path_to_your_com_executable', ['arg1', 'arg2']);

  let output = '';
  comProcess.stdout.on('data', (data) => {
    output += data.toString();
  });

  comProcess.on('close', (code) => {
    res.send(output);
  });
});

app.listen(3000, () => {
  console.log('Server running on port 3000');
});