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I'm creating an app using node-webkit, so there's a lot of javascript. I have written a node.js function that will take a screen shot and save it to the disk, however, it saves it to the project root dir and I would like to prompt the user to choose a save location, but I cannot find a way to create a save file dialog. Current code: screen_shot.js: var fs = require('fs'); exports.buildFile = function(name, value) { var img = new Buffer(value, encoding='base64'); fs.writeFile(name, img, function(err) { if(err) { console.log(err); } else { console.log("The file was saved!"); } }); }; index.html: ... <script> var sc= require('screen_shot'); function wait() { $('#close-popup').click(); setTimeout(function() {screen_shot()}, 10); } function screen_shot() { html2canvas($('body'), { onrendered: function(canvas) { var img = canvas.toDataURL("image/png").split(',')[1]; var decodedImg = window.atob(img); sc.buildFile("sc.png", img); } }); } </script> ... <a href="#" onclick="wait();" data-role="button" data-theme="j">Screen shot</a> The wait function is just to give the popup I'm using time to close before the screenshot is taken. I have been reading the node-webkit file dialog doc but it is either not what I'm looking for or I cannot make it work properly.

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