<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>MediaDevices.getUserMedia()</title> </head> <body> <button onclick="startVideo()">ビデオ開始!</button> <button onclick="stopVideo()">ビデオ終了!</button> <button onclick="snapshot()">写真撮影!</button> <h2>JavaScriptでカメラ表示(・8・)</h2> <video autoplay width="320" height="240"></video> <h2>スナップショット!</h2> <img/> <canvas style="display: none" width="320" hei
