node-desktop-screenshot

Take a screenshot of the computer on which Node is running, using platform-specific external tools included with the package

Supports Windows (win32) and OSX (darwin) platforms

Windows version uses nircmd (http://nircmd.nirsoft.net)

Available Options

• quality: JPEG quality (0 to 100)
• width: use in conjunction with height, or by itself to maintain aspect ratio
• height: use in conjunction with width, or by itself to maintain aspect ratio

Examples

Full resolution

var screenshot = require('desktop-screenshot');

screenshot("screenshot.png", function(error, complete) {
    if(error)
        console.log("Screenshot failed", error);
    else
        console.log("Screenshot succeeded");
});

Resize to 400px wide, maintain aspect ratio

var screenshot = require('desktop-screenshot');

screenshot("screenshot.png", {width: 400}, function(error, complete) {
    if(error)
        console.log("Screenshot failed", error);
    else
        console.log("Screenshot succeeded");
});

Resize to 400x300, set JPG quality to 60%

var screenshot = require('desktop-screenshot');

screenshot("screenshot.jpg", {width: 400, height: 300, quality: 60}, function(error, complete) {
    if(error)
        console.log("Screenshot failed", error);
    else
        console.log("Screenshot succeeded");
});

By Window ID - OS X / Darwin only

screenshot("screenshot.jpg", {windowId: 12345}, function(error, complete) {
	if(error)
		console.log("Screenshot failed", error);
	else
		console.log("Screenshot succeeded");
});

A window id can be obtained by for example using node-window-listing.

TODOs

• Tests
• Linux support
• Multi-screen support
• Cropping
• Return contents of image, rather than writing file