Java教程

浏览器屏幕共享

本文主要是介绍浏览器屏幕共享,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <video autoplay playsinline muted></video>
    <button id="startButton">开始</button>
    <div id="errorMsg" style="color:red;">这里显示错误信息</div>
    <script>
        // let voices=[] //用了存放预设的人物信息
        // speechSynthesis.onvoiceschanged=function(){
        //     voices=speechSynthesis.getVoices().filter(i=>i.lang.includes('zh'))
        //     console.log(voices);
        //     let sayer=new SpeechSynthesisUtterance(`
        //     我叫你好`)
        //     sayer.voice=voices[0]
        //     speechSynthesis.speak(sayer)
        // }
        const startButton=document.getElementById('startButton')
        startButton.addEventListener('click',()=>{
            navigator.mediaDevices.getDisplayMedia({video:true}).then(handleSuccess,handleError)
        })
        function handleSuccess(stream){
            startButton.disabled=true
            const video=document.querySelector('video')
            video.srcObject=stream
            stream.getVideoTracks()[0].addEventListener('ended',()=>{
                errorMsg('The user has ended sharing the screen')
                startButton.disabled=false
            })
        }
        function handleError(error){
            errorMsg(`getDisplayMedia error:${error.name}`,error)
        }
        function errorMsg(msg,error){
            const errorElement=document.querySelector('#errorMsg')
            errorElement.innerHTML+=`<p>${msg}</p>`
            if(typeof error!=='undefined'){
                console.error(error);
            }
        }
    </script>

</body>
</html>
这篇关于浏览器屏幕共享的文章就介绍到这儿,希望我们推荐的文章对大家有所帮助,也希望大家多多支持为之网!