We can get resolution and stuff for our screen is `Screen` class. So, we should use `Screen.WorkingArea.Width` and `Screen.WorkingArea.Height`, if we want to place something in center of screen.

But, in Windows 8.1 (not sure about other OSs) there is possibility to scale items on screen, if they seem too small. You can check it, by calling context menu on desktop, select "Screen Resolution", and then select "Make text and other items larger or smaller".

And the problem is, that, it seems, it does actually increase screen resolution! So, `Screen.WorkingArea.Width` and `Screen.WorkingArea.Height` will give you scaled value, and point `Screen.WorkingArea.Width/2` `Screen.WorkingArea.Height/2` will no longer in center of actual screen (for 200% scaling this point will be on lower right corner of screen). That might screw a lot of placement of UI items.

So, is it possible to get value of scaling? I can't find any class containing this info.