Function libslang_sys::slang::SLfile_set_write_method

pub unsafe extern "C" fn SLfile_set_write_method(
    f: *mut SLFile_FD_Type, 
    func: Option<unsafe extern "C" fn(arg1: VOID_STAR, arg2: *mut c_char, arg3: c_uint) -> c_int>
) -> c_int