Function
Interrupt callback type
Format
CallBackProc ( Id, Message, wParam, lParam, Param )
Parameters
Id [ C, C++ : short] [Python: ctypes.c_short]
Specifies the device ID retrieved from CntInit.
Message [ C, C++ : short] [Python: ctypes.c_short]
The message number that caused the callback function call is passed.
|
Definition |
Value |
|
CNTM_COUNTER_ERROR |
0x1141 |
wParam [ C, C++ : long] [Python: ctypes.c_long]
Channel number is passed when counter error occurs.
lParam [ C, C++ : long] [Python: ctypes.c_long]
Error kind is passed when counter error occurs.
Abnormal input error: CNT_AI_ERROR
Filter error: CNT_FLT_ERROR
Alarm error: CNT_ALM_ERROR
Param [ C, C++ : void *] [Python: ctypes.c_void_p]
The parameter which is passed in CntSetCounterErrorCallbackProc is passed.
Return Value
None
Remarks
You should write the substance definition for interrupt callback function in this format.
See Also
CntSetCounterErrorEvent CntSetCounterErrorCallbackProc