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MessageChannelMain

MessageChannelMain is the main-process-side equivalent of the DOM MessageChannel object. MessageChannelMain是DOM MessageChannel对象的主要进程端等价物。Its singular function is to create a pair of connected MessagePortMain objects.它的奇异功能是创建一对连接的MessagePortMain对象。

See the Channel Messaging API documentation for more information on using channel messaging.有关使用通道消息传递的更多信息，请参阅通道消息传递API文档。

Class: MessageChannelMain​

Channel interface for channel messaging in the main process.主进程中用于通道消息传递的通道接口。

Process:进程：Main

Example:示例：

// Main process
const { MessageChannelMain } = require('electron')
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].on('message', (messageEvent) => {
    console.log(messageEvent.data)
  })
})

Instance Properties实例属性​

channel.port1​

A MessagePortMain property.MessagePortMain属性。

channel.port2​

A MessagePortMain property.MessagePortMain属性。