Signametrics Corporation SMU2060, Руководство оператора

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Signametrics
Remarks
This function is the same as the DMMGetDeviation() , with the exception that it returns
a string. See DMMGetDeviation() for more details.
Parameter Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
lpszDev
LPCSTR Points to a buffer (at least 64 characters long) to hold the
result. The return value will consist of a leading sign a floating-point,
and a % units specifier
Return Value
Integer string length if successful, or an error code.
Value Meaning
Negative Value Error code
Positive Value < 100
The length of the returned string
Postive Value ≥ 100 Warning code
Example
char cBuf[64];
int strLength = DMMGetDeviatStr(0, cBuf);
DMMGetDevLocation
SMU2060  SMU2064 
Description
Get a string containing the location of the DMM in the USB structure.
#include "SMU2060.h"
int
DMMGetDevLocation(int
nDmm
, LPCSTR
lpszLoc
)
Remarks
This service function retrieves the location of the USB DMM specified by
nDmm
in the
USB bus. A zero terminated string of length 8 is returned in
lpszLoc
. This function must
be used prior to opening the DMM. That is, prior to initializing or opening it by
DMMInit() or DMMOpenUSB() .
Parameter Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
lpszLoc
LPCSTR Points to a buffer (at least 8 characters long) to hold the
result.
Return Value
Integer string length if successful, or an error code.
Value Meaning
Negative Value Error code
Positive Value < 100 The length of the returned string
Postive Value ≥ 100
Warning code
Example
char cBuf[8];
int i = DMMGetDevLocation(0, cBuf);