This question already has an answer here:
Windows has a "high DPI" feature which lets users effectively use high DPI displays, in since Windows XP.
However, many applications implemented display scaling incorrectly. In Windows Vista, they added a backwards compatibility feature which scales the application as a bitmap, resulting in blurry controls.
I would like to make my application be high-DPI aware, which means testing in high DPI mode. But switching back and forth (and logging in/out) to check if the scaling code works correctly is annoying.
Is there some way to force my application to run in high DPI mode for testing purposes?
(I am well aware that the answer may be "you can't; sorry." I worded this as a "How..." question because I don't want someone to say "Yes" and say nothing else)