Windows Ink API Support for 2.10
--> Windows
I'm using an HP Specter x360 and there's very little support for using the Tilt Pen. There's a couple of apps on the Windows store with awful features and horrible payment schemes, but nothing near satisfactory. The latest versions of Blender work incredibly well with the hardware and it would be great to have an image editor with the same level of functionality. The problem I've found is GIMP still uses the older WinTab API as described at https://h30434.www3.hp.com/t5/Notebook-Video-Display-and-Touch/How-to-make-my-HP-Tilt-pen-on-HP-Spectre-x360-13-ae001nl/td-p/6519953
The reason why GIMP wouldn't recognize pen pressure is because GIMP uses older pen API called "WinTab" while HP Tilt Pen driver only support Windows Ink API based on Microsoft Pen Protocol (formerly n-trig).
The post goes on to describe a driver workaround that worked for a time, but no longer is the case.