This is a sample and simple C++ console project to change windows Scale and Layout aka DPI scaling from command line parameters. It can work on single and multi-monitor setup.
It takes up to 2 parameters, first being the scale in percent. The second argument is the monitor index, which you get from windows display settings, if you click identify it shows you the index.
SetDPI.exe [DPI scale value] [monitor index]
If you have only one monitor or want only main monitor to change you can omit the monitor index.
To get the current scale of a monitor, replace the scale argument with get to print the current scaling. For automation with value only the scale is printed.
- To set 2nd monitor to a scale value of 250
SetDPI.exe 250 2
- To set main monitor to a scale value of 125
SetDPI.exe 125
- To get the scale of the 2nd monitor
SetDPI.exe get 2printsCurrent Resolution: 250SetDPI.exe value 2prints250
Get the release build and a sample AutoHotkey script with hotkey example from here https://github.com/imniko/SetDPI/releases/
The whole credits go to @lihas of this project, https://github.com/lihas/windows-DPI-scaling-sample it was not possible without his findings.
