HP Drive manual Display\0333041m Bad return from Close method\033m\n

hr = pDMMData->Initiate();

if (FAILED(hr))

{

Display("\033[30;41m Bad return from Initiate() method\033[m\n");

}

10To set the reading timeout to 1 second, select the DMM.cpp file from the PAWS Project window.

11In the DMM_Fetch() interface function, insert the following code below the line Please insert your CEM driver code here:

double Data = 0; DATUM *fdat;

hr = pDMMData->Fetch(1000, &Data); if (FAILED(hr))

{

Display("\033[30;41m Bad return from Fetch(1000, &Data) method\033[m\n");

}

fdat = FthDat(); DECDatVal(fdat, 0) = Data; FthCnt(1);

Note: The first argument in the Fetch method specifies how long to wait in the Fetch operation since it is possible that no data is available or the trigger event did not occur. The second parameter contains the actual reading or a value indicating that an over-range condition occurred.

12To conserve resources, you should close the driver session. From the PAWS Project window, select the ctrl.cpp file.

13In the doUnload() interface function, insert the following code below the line // Please insert your CEM driver code here:

hr = driver->Close(); if (FAILED(hr))

{

Display("\033[30;41m Bad return from Close() method\033[m\n");

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Using IVI with PAWS • 81

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