Function libeyelink_sys::eyelink_initialize_mapping

pub unsafe extern "C" fn eyelink_initialize_mapping(
    left: f32, 
    top: f32, 
    right: f32, 
    bottom: f32
) -> INT32

@ingroup extra_data Function to initialize the gaze to href and href to gaze mapping. This function should be called before calling \c eyelink_href_to_gaze() or \c eyelink_gaze_to_href(). @param left Left pixel value (normally 0). @param top Top pixel value (normally 0). @param right Right pixel value (width of the display). @param bottom Bottom pixel value (height of the display). @return \c -1 if the tracker does not support the commands, href_point_eye set_href_point