OpenGothic uses GetClientRect function to determine the game resolution. But the problem with it is that the result depends on the scaling factor set in the System->Display settings. If Scale is set above 100% (which is common for high dpi monitors) then GetClientRect will return scaled numbers, i.e. 200% 3840x2160 -> 1920x1080.
OpenGothic uses GetClientRect function to determine the game resolution. But the problem with it is that the result depends on the scaling factor set in the System->Display settings. If Scale is set above 100% (which is common for high dpi monitors) then GetClientRect will return scaled numbers, i.e. 200% 3840x2160 -> 1920x1080.