HP Drive Manual de usuario descargar pdf (Pagina 78)

Chapter 8

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#import "IviDmmTypeLib.dll" named_guids,

raw_interfaces_only, raw_native_types no_namespace

#import "Agilent34401.dll" named_guids, raw_interfaces_only,

raw_native_types no_namespace

#endif

Note:

This header file allows access to the COM, IVI-specific, and device

environments.

2 From the PAWS Project window, select the ctrl.cpp file. Insert the following

code in the ctrl.cpp file directly below #include "key.h" code:

#include "DMM.h"

extern CComPtr<IAgilent34401> driver;

extern CComPtr<IAgilent34401DCVoltage> pDMMDCVolt;

extern CComPtr<IAgilent34401Trigger> pDMMTrig;

extern CComPtr<IAgilent34401Measurement> pDMMData;

extern HRESULT hr;

3 From the PAWS Project window, select the DMM.cpp file. Insert the following

code in the DMM.cpp file directly below #include "key.h" code:

#include "DMM.h"

CComPtr<IAgilent34401> driver;

CComPtr<IAgilent34401DCVoltage> pDMMDCVolt;

CComPtr<IAgilent34401Trigger> pDMMTrig;

CComPtr<IAgilent34401Measurement> pDMMData;

HRESULT hr;

4 To create the driver object and open an I/O session to the instrument with the

Initialize method, select the ctrl.cpp file from the PAWS Project window.

Note:

To determine the syntax for the commands you want to use in your program,

consult the driver help file.

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HP Drive Manual de usuario Pagina 78