Hi, I've been trying to resize borderless fullscreen games to contain themselves within a specific monitor split, but have so far been unable to. I've googled the topic extensively, encouraged by this response in the steam forums (https://steamcommunity.com/app/227260/discussions/0/2941369009265948241).

What I want to achieve is essentially the ability, either by triggers, functions, or whatever means, to force a borderless fullscreen window to resize itself to fit a desired split (in this case my central 2560x1440 split). So far all of my attempts have been entierly unsuccessful, prompting me to this forum post.

For further reference, I've used functions such as these (https://www.displayfusion.com/ScriptedFunctions/View/?ID=ab674b2f-b76a-4276-b2ad-e1d3651a2c04) to obtain my desired results accross most games (like Risk of Rain 2, Devil May Cry 5, God of War...), but games such as Heroes of the Storm or Age of Empires II: Definitive Edition very stubbornly refuse to work correctly, either rejecting the borderless command entierly, or alternatively breaking the mouse hitbox when I do manage to get it to work (very inconsistently so).

Any help that allows me to achieve a borderless window experience in my desired split consistently will be greatly appreciated, many thanks!

PS. Attaching my troubleshooting info as I've seen it be commonly requested, hope it's helpful in providing me a solution!