Hi I am trying to mimick my mobile device resolution and window scale on dekstop. And I am trying to set window scale different than the resolution.
For example on desktop I have the window width and height below. On desktop it fills my whole screen is there a way I can scale the window but keep the resolution? I think this is related to the high-DPI settings in SDL 2.0.4.
parms_["WindowWidth"] = 1080;
parms_["WindowHeight"] = 1920;
Not sure what you mean, but maybe you are looking for UI::SetScale()?
It is not the UI it is Urho3d window. Let say my resolution is 1080p I want to scale the window 2x smaller but keep the resolution.
In one of the industries that I worked, our cabinet (a commercial product) required a monitor on top set vertically and a smaller monitor on bottom. What we did to emulate it when we had no spare dev cabinet was to just turn our PC monitor sideways 
Is there any reason why you need full mobile resolution on desktop? You can just as easily develop for smaller resolution and make it properly scale.
I am have some third party libs that are using pixel coordinates.