RTD2K_SetMathPar
This function code is used to set the math parameter for a specific RTD virtual channel.
C/C++
int RTD2K_SetMathPar ( int hConnection,
BYTE bytChannel,
WORD wMathPar);
Visual Basic
Declare Function RTD2K_SetMathPar Lib "MXIO.dll" (ByVal hConnection As Long, ByVal bytChannel As Byte, ByVal iMathPar As integer) As Long
Arguments:
hConnection |
The handle for an I/O device connection. |
bytChannel |
The specific channel to be set. |
wMathPar |
A pointer that stores the specific RTD virtual channel's math parameter. For AVG,Bit 0 of high byte represents the first channel and Bit 1 of high byte represents the second channel.For DEV,the High-Byte as subtrahend and Low-Byte as minuend. Exp AVG( b'0000-0000 b'0010-0011) = ch5+ch1+ch0 Exp DEV( b'0000-0100 b'0010-0000) = ch2-ch6 |
Return Value:
Succeed |
MXIO_OK |
Fail |
Refer to Return Codes. |