Size and Position values need to be scaled on High DPI screens

[hanjo]

Hi,

I have a 4k screen which I run at 175% in Windows.

For example, if I want to have a window of 1/4 the width and 1/4 the height of my screen in the bottom right corner, I would expect that I need to use these parameters:

WWidth=960 ;1/4 of 3840
WHeight=540 ;1/4 of 2160
WX=2880 ;3840-960
WY=1620 ;2160-540

In fact, I need to divide these values with my scale factor of 1.75 to get to the values that yield the desired outcome, which are:

WWidth=549
WHeight=309
WX=1646
WY=926

If I set the high DPI compatibility settings of the application like shown in the screenshot below, the above mentioned actual values can be used. I don't know if this is a lot of effort, but I think it would be good to check for the screens' scaling factor on startup.

Thanks a lot!