Function
Retrieves the sampling count (scan number) per channel.
Format
Ret = CntGetSamplingCount ( Id , ScanCount , ScanCarry )
Parameters
Id
[ C: short ] [ Python: ctypes.c_short ]
Specifies the device ID retrieved from CntInit.
ScanCount
[ C: int * ] [ Python: ctypes.POINTER(ctypes.c_int) ]
Specify the address of the variable that stores the scan count.
ScanCarry
[ C: unsigned long * ] [ Python: ctypes.POINTER(ctypes.c_ulong) ]
Specify the address of the variable that stores the carry count.
Return Value
Ret [ C: long ] [ Python: ctypes.c_long ]
Definition |
Value |
Description |
CNT_ERR_SUCCESS |
0 |
Normal Complete |
CNT_ERR_DLL_INVALID_ID |
10001 |
Invalid ID is specified. |
CNT_ERR_DLL_CALL_DRIVER |
10002 |
Driver cannot be called (failed in ioctl). |
CNT_ERR_DLL_BUFF_ADDRESS |
10101 |
Invalid data buffer address. |
CNT_ERR_SYS_MEMORY |
20000 |
It failed in memory allocation for the object preparation. |
CNT_ERR_SYS_USING_OTHER_PROCESS |
20003 |
Cannot use because another process is using the device. |
The other errors: (See also: Details of Error Code)
Initial Value
None
Remarks
The sampling count is a 64-bit counter, ScanCarry is the higher 32-bit, ScanCount is the lower 32-bit.
Example
C |
Ret
= CntGetSamplingCount (Id, &ScanCount, &ScanCarry); |
Python |
Ret
= ccnt.CntGetSamplingCount (Id, ctypes.byref(ScanCount), ctypes.byref(ScanCarry)) |