CVI串口回调安装问题请教大家 恳请帮忙

实现功能：单片机给rs232发数据  CVI接受数据
int CVICALLBACK ConfigCallback (int panel, int control, int event,
  void *callbackData, int eventData1, int eventData2)
  
  {
    char devicename[10];
switch (event)
  
  {
  case EVENT_COMMIT:
      //获取COMPORT、BAUDRATE控件值
      GetCtrlVal (panel, PANEL_COMPORT, &comport);
      GetCtrlVal (panel, PANEL_BAUDRATE, &baudrate);
      
         //从COMPORT控件得到设备名
         GetLabelFromIndex (panel, PANEL_COMPORT, comport-1, devicename);
   //配置COM 端口
         status = OpenComConfig (comport, devicename, baudrate, 0, 8, 1, 0, 0);
  
   InstallComCallback (1,LWRS_RECEIVE, 10, 0, ComCallback,NULL);
。。。。。。。。。。
void CVICALLBACK  ComCallback(int COMPort,int eventMask,
void *callbackdata)
  
  {
int bytes;
switch (event)
  {
  case EVENT_COMMIT:
  
            //获取BYTESTOREAD控件值
            GetCtrlVal (panel, PANEL_BYTESTOREAD, &bytes);
  
            //从COM端口读取数据
            status=ComRd (comport, data, bytes);
  
   //将读取的数据显示在TEXTBOX控件中
   ResetTextBox (panel, PANEL_TEXTBOX, data);
  
   //在温度计上显示温度
    
         Fmt (&temp,"%f<%s",data);
    
   SetCtrlAttribute (panel, PANEL_TEMP, ATTR_CTRL_VAL, temp);
                  
     //作曲线图
            PlotStripChart(panel,PANEL_STRIPCHART,data,2000,0,0,VAL_CHAR);
请问：串口回调是这么写的么？
  这句 InstallComCallback (1,LWRS_RECEIVE, 10, 0, ComCallback,NULL);
提示说ComCallback没有定义，需要是ComCallbackPtr格式是什么意思？
如何改？谢谢