Technical data

Programming Examples 3
Agilent N8211A/N8212A Performance Upconverter Synthetic Instrument Module, 250 kHz to 20 / 40 GHz 79
} while (1);
}
/***************************************************************************
*
> $Function: isQuery$
*
* $Description: Test current SCPI command to see if it a query. $
*
* $Return: (unsigned char) . . . non-zero if command is a query. 0 if not.
*
***************************************************************************/
unsigned char isQuery( char* cmd )
{
unsigned char q = 0 ;
char *query ;
/*********************************************************/
/* if the command has a '?' in it, use queryInstrument. */
/* otherwise, simply send the command. */
/* Actually, we must be a more specific so that */
/* marker value quires are treated as commands. */
/* Example: SENS:FREQ:CENT (CALC1:MARK1:X?) */
/*********************************************************/
if ( (query = strchr(cmd,'?')) != NULL)
{
/* Make sure we don't have a marker value query, or
* any command with a '?' followed by a ')' character.