devela::_dep::sdl2::sys

Function SDL_GetNumTouchFingers

pub unsafe extern "C" fn SDL_GetNumTouchFingers(touchID: i64) -> i32
Available on crate feature dep_sdl2 only.
Expand description

Get the number of active fingers for a given touch device.

\param touchID the ID of a touch device \returns the number of active fingers for a given touch device on success or 0 on failure; call SDL_GetError() for more information.

\since This function is available since SDL 2.0.0.

\sa SDL_GetTouchFinger