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

Function SDL_GetTouchFingers

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

Get a list of active fingers for a given touch device.

§Parameters

  • touchID: the ID of a touch device.
  • count: a pointer filled in with the number of fingers returned, can be NULL.

§Return value

Returns a NULL terminated array of SDL_Finger pointers or NULL on failure; call SDL_GetError() for more information. This is a single allocation that should be freed with SDL_free() when it is no longer needed.

§Availability

This function is available since SDL 3.2.0.