jojobyte/index.html

## index.html
<html>
  <body style="background: #333">
    <script >
      var gui = require('nw.gui');
      var win = gui.Window.get();
      function takeSnapshot() {
        win.capturePage(function(img) {
          var popWindow = gui.Window.open('popup.html',
          {width: 420, height: 300});
          popWindow.on('loaded', function() {
            var image = popWindow.window.document.getElementById('image');
            image.src = img;
          });
        }, 'png');
      }
    </script>
    <div style="background: #123; width:100px; height:100px; border:1px solid
      #000">
    </div>

    <button onclick="takeSnapshot()">Click me</button>
  </body>
</html>

## package.json
{
  "name": "nw-api-demo",
  "main": "index.html"
}

## popup.html
<html>
  <head>
    <title>Popup window</title>
    <style>
      img{
        width: 400;
      }
    </style>
  </head>
  <body>
    <img id="image"/>
  </body>
</html>
	<html>
	<body style="background: #333">
	<script >
	var gui = require('nw.gui');
	var win = gui.Window.get();
	function takeSnapshot() {
	win.capturePage(function(img) {
	var popWindow = gui.Window.open('popup.html',
	{width: 420, height: 300});
	popWindow.on('loaded', function() {
	var image = popWindow.window.document.getElementById('image');
	image.src = img;
	});
	}, 'png');
	}
	</script>
	<div style="background: #123; width:100px; height:100px; border:1px solid
	#000">
	</div>

	<button onclick="takeSnapshot()">Click me</button>
	</body>
	</html>