devela::_dep::sdl3::sys::touch

Function SDL_GetTouchDevices

pub unsafe extern "C" fn SDL_GetTouchDevices(
    count: *mut i32,
) -> *mut u64
Available on crate feature dep_sdl3 only.
Expand description

Get a list of registered touch devices.

On some platforms SDL first sees the touch device if it was actually used. Therefore the returned list might be empty, although devices are available. After using all devices at least once the number will be correct.

§Parameters

  • count: a pointer filled in with the number of devices returned, may be NULL.

§Return value

Returns a 0 terminated array of touch device IDs or NULL on failure; call SDL_GetError() for more information. This should be freed with SDL_free() when it is no longer needed.

§Availability

This function is available since SDL 3.2.0.