Agilent Technologies 8163A Programming Manual page 154

Lightwave multimeter lightwave measurement system lightwave multichannel system
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VISA Programming Examples
{
/* only errors should be displayed */
if(errMsg[0] != '+')
printf("error:%ld --> %s\n", err_status,errMsg) ;
}
}
ViStatus InitVisa ( ViSession *iHandle)
{
ViStatus errStatus;
ViSession
/* First get initialized the visa library (see example 1) */
errStatus = viOpenDefaultRM (&defaultRM);
if (errStatus < VI_SUCCESS)
printf("Failed to open VISA Resource manager\n");
/* Open session to GPIB device at address 20; */
errStatus = viOpen (defaultRM, "GPIB::20::INSTR", VI_NULL,VI_NULL,iHandle);
if (errStatus < VI_SUCCESS)
printf("Failed to open instrument\n");
return errStatus;
}
154
/* returned error code from visa call */
defaultRM;
/* default visa resource manager variable */
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System,
& Agilent 8166A Lightwave Multichannel System, Third Edition
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