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MessageChannelMain

MessageChannelMain 是 DOM MessageChannel 对象的主进程等价对象。 Its singular function is to create a pair of connected MessagePortMain objects.

关于 channel 消息的使用文档详见 Channel Messaging API

Class: MessageChannelMain​

主进程中用于通道消息传递的通道接口。

Process: Main

示例：

// Main process
const { BrowserWindow, MessageChannelMain } = require('electron')
const w = new BrowserWindow()
const { port1, port2 } = new MessageChannelMain()
w.webContents.postMessage('port', null, [port2])
port1.postMessage({ some: 'message' })

// Renderer process
const { ipcRenderer } = require('electron')
ipcRenderer.on('port', (e) => {
  // e.ports is a list of ports sent along with this message
  e.ports[0].onmessage = (messageEvent) => {
    console.log(messageEvent.data)
  }
})

实例属性​

channel.port1​

A MessagePortMain property.

channel.port2​

A MessagePortMain property.