Feature Request - Use the right touchpad to draw in the notebook space

[mintexists]

I don't know if this is possible, I'm not sure if the UI has access to the input devices on the deck, but it would be a nice feature <3

[popsUlfr]

If you attach a mouse it can be used to draw. To be able to draw with the touchpad it would need to be enabled as mouse input for the Steam UI layout. I'd need to test this myself but if you go into desktop mode, open Steam Big Picture mode, in the input settings open the Big Picture profile and set the touchpad to mouse input it should make it available in game mode.

[mintexists]

Doing some poking around on this and found that
SteamClient.Input.RegisterForControllerAnalogInputMessages(console.log)
gives

[
    {
        "strActionName": "Scroll",
        "x": -2,
        "y": -2,
        "nController": 15
    }
]

Some further digging has led me to HandleControllerInputMessages in 3991.js, which is able to get the position of the touch on the trackpad somehow