Function sdl2_sys::SDL_hid_set_nonblocking

pub unsafe extern "C" fn SDL_hid_set_nonblocking(
    dev: *mut SDL_hid_device,
    nonblock: c_int
) -> c_int

Set the device handle to be non-blocking.

In non-blocking mode calls to SDL_hid_read() will return immediately with a value of 0 if there is no data to be read. In blocking mode, SDL_hid_read() will wait (block) until there is data to read before returning.

Nonblocking can be turned on and off at any time.

\param dev A device handle returned from SDL_hid_open(). \param nonblock enable or not the nonblocking reads - 1 to enable nonblocking - 0 to disable nonblocking. \returns 0 on success and -1 on error.

\since This function is available since SDL 2.0.18.