A variable controlling whether trackpads should be treated as touch devices.
Defined in <SDL3/SDL_hints.h>
#define SDL_HINT_TRACKPAD_IS_TOUCH_ONLY "SDL_TRACKPAD_IS_TOUCH_ONLY"
On macOS (and possibly other platforms in the future), SDL will report touches on a trackpad as mouse input, which is generally what users expect from this device; however, these are often actually full multitouch-capable touch devices, so it might be preferable to some apps to treat them as such.
The variable can be set to the following values:
This hint should be set before SDL is initialized.
This hint is available since SDL 3.0.0.