daq2204.cpp

labview8.2.1与DAQ数据采集原码

// DAQ2204.cpp : Defines the entry point for the DLL application.
//

#include "stdafx.h"
#include "d2kdask.h"  //添加供应商提供DLL的头文件

BOOL APIENTRY DllMain( HANDLE hModule, 
                       DWORD  ul_reason_for_call, 
                       LPVOID lpReserved
					 )
{
    return TRUE;
}

//定义函数AI_OnePoint()
extern "C" __declspec(dllexport) int AI_OnePoint(int CardNumber,
											     int ADChan,
											     double *AdValue)
{
        int err=0;
        int cardID=0;
       
	    cardID = D2K_Register_Card(DAQ_2204, CardNumber);
 	    if (cardID<0) return 0;

	    err = D2K_AI_CH_Config(cardID, ADChan, AD_B_10_V|AI_RSE);
	    if (err<0) return 0;
	    
		err = D2K_AI_VReadChannel(cardID,ADChan,AdValue);
    	if (err!=NoError) return 0;
    	
		D2K_Release_Card(cardID);
        return 1;
}

//继续添加其它输出函数的定义
//...