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Chapter 15
Appendix
56
15.2.5 UrdGetReg
Syntax
BOOL URDAPI_EXPORT UrdGetReg( int nAdrBytes, int nDataBytes,
const LPBYTE pucAdr, LPDWORD pdwData )
To receive several data bytes from a specific location (address) this
function will be called. Here occurs the data transfer.
Return Value
Parameters
The result of the operation of this function.
TRUE
The operation was successful. No error
occurred.
FALSE
The operation was not successful. An
error occurred. Please use the
UrdGetStatus function for more
details of the error.
nAdrBytes
Number of bytes in the device address.
nDataBytes
Number of bytes in the data (max. 4).
pucAdr
This pointer points to an array which holds the # of address bytes.
pdwData
The data bytes will be retrieved in this parameter. The most significant byte
contains the first data by.
Comments
There are at most 4 data bytes (DWORD).
15.2.6 UrdGetStatus
Syntax
Parameters
void URDAPI_EXPORT UrdGetStatus ( LPSTR pMessage )
This function has to report the current error status. If no error has occurred
after the last call of this function the return string has to be "No Error".
pMessage
Pointer to a character array that will receive the error message. The buffer has to
be at least 50 characters large.
CSH - DEV / SW
13-Dec-00