CntGetMaxChannels

Function

Retrieves the total number of channels of device.

Format

Ret = CntGetMaxChannels ( Id , ChannelNum )

Parameters

Id [ C: short ] [ Python: ctypes.c_short ]
Specifies the device ID retrieved from CntInit.

ChannelNum [ C: short * ] [ Python: ctypes.POINTER(ctypes.c_short) ]
Specifies the address of variable which stores the number of channels.

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.

The other errors: (See also: Details of Error Code)

Initial Value

None

Remarks

Retrieves the total number of channels for device.

Example

C	Ret = CntGetMaxChannels(Id, &ChannelNum);
Python	Ret = ccnt.CntGetMaxChannels(Id, ctypes.byref(ChannelNum))