1、 在css中设置了-webkit-app-region: drag;后右键会出来上下文菜单怎么阻止出现

在background.js里面添加下面代码

//关闭因为css: -webkit-app-region: drag;   引起的默认鼠标右键菜单
  //这里是关闭这个鼠标右键功能
  win.hookWindowMessage(278,function(e){
    win.setEnabled(false);//窗口禁用
    setTimeout(()=>{
      win.setEnabled(true);//窗口启用
    },100);
    return true;
  })

background.js全部代码

'use strict'

import { app, protocol, BrowserWindow, Menu, Tray, ipcMain } from 'electron'

import { createProtocol } from 'vue-cli-plugin-electron-builder/lib'
import installExtension, { VUEJS_DEVTOOLS } from 'electron-devtools-installer'
const isDevelopment = process.env.NODE_ENV !== 'production'

// Scheme must be registered before the app is ready
protocol.registerSchemesAsPrivileged([
  { scheme: 'app', privileges: { secure: true, standard: true } }
])

async function createWindow() {
  // Create the browser window.
  const win = new BrowserWindow({
    width: 432,
    height: 331,
    show: false,// 显示窗口将没有视觉闪烁    配合下面ready-to-show事件
    hasShadow: true,//窗口是否有阴影   
    webPreferences: {
      devTools: true,//客户端是否可以打开开发者工具     (客户端快捷键：ctrl+shift+i)
      nodeIntegration: true,//开启node模块
      enableRemoteModule: true, // 使用remote模块     electron12版本之后废除了,需要自己安装
      contextIsolation: false,
      //解决axios跨域请求      不推荐，不安全，但简单好用
      webSecurity: false,
    },
  })

  win.once('ready-to-show', () => {
    // 添加定时器是为了防止进入项目后页面出现抖动
    //防止窗口出现空白之后再显示内容
    setTimeout(() => {
      // 初始化后再显示
      win.show()
    }, 360);
  })


  //关闭因为css: -webkit-app-region: drag;   引起的默认鼠标右键菜单
  //这里是关闭这个鼠标右键功能
  win.hookWindowMessage(278,function(e){
    win.setEnabled(false);//窗口禁用
    setTimeout(()=>{
      win.setEnabled(true);//窗口启用
    },100);
    return true;
  })

  if (process.env.WEBPACK_DEV_SERVER_URL) {
    // Load the url of the dev server if in development mode
    await win.loadURL(process.env.WEBPACK_DEV_SERVER_URL)
    if (!process.env.IS_TEST) win.webContents.openDevTools()
  } else {
    createProtocol('app')
    // Load the index.html when not in development
    win.loadURL('app://./index.html')
  }
}

// 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 (BrowserWindow.getAllWindows().length === 0) createWindow()
})

// 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.once('ready-to-show', () => {
  win.show();
})

app.on('ready', async () => {
  if (isDevelopment && !process.env.IS_TEST) {
    // Install Vue Devtools
    try {
      await installExtension(VUEJS_DEVTOOLS)
    } catch (e) {
      console.error('Vue Devtools failed to install:', e.toString())
    }
  }
  createWindow()
})

// Exit cleanly on request from parent process in development mode.
if (isDevelopment) {
  if (process.platform === 'win32') {
    process.on('message', (data) => {
      if (data === 'graceful-exit') {
        app.quit()
      }
    })
  } else {
    process.on('SIGTERM', () => {
      app.quit()
    })
  }
}