Function
Retrieves the sampling count (scan number) per channel.
Format
Ret = CntGetSamplingCount ( Id , ScanCount , ScanCarry )
Parameters
Id
[ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short
]
Specify the device ID retrieved from CntInit.
ScanCount
[ VB.NET: Integer ] [ C, C++: unsigned long * ] [ C#: out uint ] [ Python:
ctypes.POINTER(ctypes.c_ulong) ]
Specify the address of the variable that stores the sampling count (scan
number).
ScanCarry
[ VB.NET: Integer ] [ C, C++: unsigned long * ] [ C#: out uint ] [ Python:
ctypes.POINTER(ctypes.c_ulong) ]
Specify the address of the variable that stores the carry count.
Return Value
Ret [ VB.NET: Integer ] [ C, C++: long ] [ C#: int ] [ Python: ctypes.c_long ]
Definition |
Value |
Description |
CNT_ERR_SUCCESS |
0 |
Normality completion |
CNT_ERR_SYS_RECOVERED_FROM_STANDBY |
7 |
Execute the function CntResetDevice to return from the standby mode. |
CNT_ERR_DLL_INVALID_ID |
10001 |
Invalid ID was specified. |
CNT_ERR_DLL_CALL_DRIVER |
10002 |
CNT driver can't be called (Failed in the device I/O control). |
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_NOT_SUPPORTED |
20001 |
This function can't be used by this device. |
CNT_ERR_SYS_USING_OTHER_PROCESS |
20003 |
Cannot use because another process is using the device. |
The others: (See also: Details of Error Code)
Initial Value
None
Remarks
The sampling count is
a 64-bit counter.
You can calculate 64bit value from ScanCount (Second argument) and ScanCarry
(Third argument).
ScanCarry is the higher 32-bit, ScanCount is the lower 32-bit.
After starting count,
the sampling number will be put into ScanCount.
ScanCarry will be increased (+1) and ScanCount is preset to zero(0) when
ScanCount is overflowed.
Example
Retrieves the sampling count (scan number) per channel.
VB.NET |
Dim Ret As Integer |
C, C++ |
long Ret; |
C# |
int Ret; |
Python |
Ret = ctypes.c_long() |