Yokogawa PC-Based MX100 - Manual (Page 518)

10-20
IM MX190-01E
receiveByteDARWIN
Syntax
int receiveByteDARWIN(DAQDARWIN daqdarwin, unsigned char *
byteData, int maxData, int * lenData)
Declaration
Public Declare Function receiveByteDARWIN Lib
"DAQDARWIN"(ByVal daqdarwin As Long, ByRef byteData() As Byte,
ByVal maxData As Long, ByRef lenData As Long) As Long
Parameters
daqdarwin Specify the device descriptor.
byteData Specify the field where the received byte data is to be stored.
maxData Specify the byte size of the received data.
lenData Specify the destination where the byte size of the actual data
received is returned.
Description
Stores the received data in the field specified by the parameter up to the specified
byte size.
• Returns the byte size of the actual data received if the return destination is
specified.
• If multiple bytes of data exist, repeat the function.
• Do not perform communications using other functions until the data retrieval is
completed. Other functions may not operate properly.
• The user must carry out determination of the data end.
• Used for receiving binary output when implementing a model-specific talker
function.
Return value
Returns an error number.
Error:
Not descriptor No device descriptor.
Reference
CDAQDARWIN::receiveByte
10.1 Details of Functions - DARWIN (Visual C/Visual Basic) -