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 =newBrowserWindow()
const{ port1, port2 }=newMessageChannelMain()
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)
}
})
[!WARNING] Electron's built-in classes cannot be subclassed in user code. For more information, see the FAQ.
实例属性
channel.port1
A MessagePortMain property.
channel.port2
A MessagePortMain property.