Raw mouse movement and pointer locking
For my DAW project, I really need this "pointer lock" behavior described here: https://developer.mozilla.org/en-US/docs/Web/API/Pointer_Lock_API
I need this because there will be a lot of slider/knob controls near the bottom of the window/screen, so the current method of only letting widgets listen to absolute mouse position won't work because the cursor would move outside the window and/or hit the bottom of the screen.
What would it take to get this behavior added to GTK? Is there a chance something like this would actually be accepted into the main branch?