Function libeyelink_sys::el_bitmap_save

pub unsafe extern "C" fn el_bitmap_save(
    hbm: *mut EYEBITMAP, 
    xs: INT16, 
    ys: INT16, 
    width: INT16, 
    height: INT16, 
    fname: *mut c_char, 
    path: *mut c_char, 
    sv_options: INT16
) -> c_int