"Here's a technique that may indirectly address your need. In Windows 8.1 and Windows 10 there is a possibility to enable dpi scaling for old applications written before high-resolution screens appeared. Windows will make an application believe it's drawing on a low-dpi screen and will take care of scaling the entire window for the application, so that the result shows large enough on a high-dpi screen. This will be bitmap scaling, no vector, so expect some blurring as a consequence.
You will need to enable one key in registry, then supply an XML manifest file for each application you want to scale. A good tutorial on this is
How to Fix App Scaling Surface Pro 4 + Other High DPI Displays .
Here comes the important section of the external manifest posted in the YouTube video description:
<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?>
<assembly xmlns=""urn:schemas-microsoft-com:asm.v1"" manifestVersion=""1.0"" xmlns:asmv3=""urn:schemas-microsoft-com:asm.v3"">
<asmv3:application>
<asmv3:windowsSettings xmlns=""http://schemas.microsoft.com/SMI/2005/WindowsSettings"">
<ms_windowsSettings:dpiAware xmlns:ms_windowsSettings=""http://schemas.microsoft.com/SMI/2005/WindowsSettings"">false</ms_windowsSettings:dpiAware>
</asmv3:windowsSettings>
</asmv3:application>
</assembly>
And here comes the the .reg file content that activates external manifest files:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SideBySide]
""PreferExternalManifest""=dword:00000001"
