SsiGetCorrection

Function

Get the currently set correction value.

Format

Ret = SsiGetCorrection ( Id , ChannelNo , &CorrectionSlope , &CorrectionOffset )

Parameters

Id [ C, C++: short ] [ Python: ctypes.c_short ]
Specify the device ID retrieved from SsiInit.

ChannelNo [ C, C++: short ] [ Python: ctypes.c_short ]
Specify the channel number.

CorrectionSlope [ C, C++: float * ] [ Python: ctypes.POINTER(ctypes.c_float) ]
Specify the address of the variable that stores the correction slope.

CorrectionOffset [ C, C++: float * ] [ Python: ctypes.POINTER(ctypes.c_float) ]
Specify the address of the variable that stores the correction offset.

Return Value

Ret [ C, C++: long ] [ Python: ctypes.c_long ]

Definition	Value [Dec]	Description
SSI_ERR_SUCCESS	0	Succeeded
SSI_ERR_DLL_INVALID_ID	10001	Invalid device id.
SSI_ERR_DLL_CALL_DRIVER	10002	Can not call driver (ioctl failed).
SSI_ERR_DLL_BUFF_ADDRESS	10100	Invalid data buffer address.
SSI_ERR_SYS_NOT_SUPPORTED	20001	Function is not supported for this device.
SSI_ERR_SYS_CH_NO	20100	Channel No. is outside the setting range.
SSI_ERR_SYS_DISABLE_CH	20104	Disabled channel number.

The others (See also: Details of Error Code)

Remarks

Get the currently set correction value.

Example

Get the correction value for 1ch.

C, C++

long Ret;
float CorrectionSlope;
float CorrectionOffset;
Ret = SsiGetCorrection(Id, 1 , &CorrectionSlope, &CorrectionOffset);

Python

Ret = ctypes.c_long()

CorrectionSlope = ctypes.c_float()

CorrectionOffset = ctypes.c_float()

Ret = cssi.SsiGetCorrection(Id, 1 , ctypes.byref(CorrectionSlope) , ctypes.byref(CorrectionOffset)