How to detect desktop scaling?

Graphics
1

Is there someway to detect what the desktop scaling is set to when starting up a MonoGame app? I’d like to handle scaling in my app manually, but I would also like to start with whatever setting the user has told their OS that their scaling preference is.

I have the dpiAware and dpiAwareness properties in my app.manifest file, and those seem to be working correctly. Ideally I’d like to be able to read a property like GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.DesktopScaling that would tell me what the user has set as their desktop scaling so I can use that as an initial value.

If there’s not a built-in way in MonoGame to do this, does anyone know I can get this value on different platforms?

2

I can’t give you any specifics, but I remember digging through this once. I think there’s a very obscure way to get the info through the Win32 API. If you’re only running on Windows, this shouldn’t be a problem for you. If you intent to support other operating systems, there are ways you can work around this… :slight_smile:

3

I found this answer, which seems to work for Windows: https://stackoverflow.com/a/5977638/3856907
That’s good enough for me for now, although I would like to have this support for Linux/Mac OS it’s a much lower priority.

4

Provided you can figure out how to get that information on those operating systems (if they even support such things), you can use Dependency Injection to your advantage.

Good luck!