小弟非資工本科，還請各位先進多指教

工作上自學python最近在讀一組RFID機器所碰到的問題

protocol


送出命令的部分都沒問題，都Return 0成功

==============================
from ctypes import *

dll = windll.LoadLibrary("MasterRD.dll")

port = 1
baud = 19200
icdev = 0
msec = 10
color = 2
type = 0x41
model = 0x52
bcnt = 4

rf_init_com = dll.rf_init_com(port,baud)
rf_beep = dll.rf_beep(icdev,msec)
rf_ligh = dll.rf_light(icdev,color)
rf_init_type = dll.rf_init_type(icdev,type)
rf_request = dll.rf_request(icdev,model,byref(i))
print i
==============================

我該如何利用byref讀取*pTagType回應值呢?