Installed as Windows service the screenshot is always a black image instead of the actual screen

[kwoxer]

Describe the bug
Installed as a Windows service the screenshot is always a black image instead of the actual screen.

To Reproduce 1
Steps to reproduce the behavior:

1. Have a server.js with screenshot-desktop
2. Run server.js with node-windows
3. Now the screenshot is just a black image

To Reproduce 2
Steps to check when it works:

1. Have a server.js with screenshot-desktop
2. Run server.js without node-windows (in command line)
3. Now the screenshot is correct

Expected behavior
The image should ALWAYS contain the current screen.

Environment (please complete the following information):

• Window Server 2019 (but same also on usual Windows 10)
• Latest node packages

Additional context
This is the command I installed the screenshot server

var Service = require('node-windows').Service;
var svc = new Service({
  name: 'Screenshot tool',
  script: 'C:\\path\\server.js'
});
svc.on('install', function(){
  svc.start();
});
svc.install();

Idea

So far what I have seen that the issue is the session ID. So the session 0 is never a real user. So it always stays black.

But maybe to set the resolution somewhere or changing the session ID? Is that possible maybe in this node package directly?

[bencevans]

Hi @kwoxer, thanks for the detailed report. I'm afraid I've just closed an issue covering the same at #185. A PR would be welcome if you find a way to solve it but shall close this as per the last comment on #185. If there's an option in the service setup to run as a particular user this may help but I believe when I tried it was still sandboxed away from the "real" desktop session.

[kwoxer]

Ok thanks, will have a look on the node-windows package.

coreybutler/node-windows#286