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TCP Library Chapter 7
LabWindows/CVI Standard Libraries 7-12 © National Instruments Corporation
Return Value
status
integer Refer to error codes in Table 7-3.
See Also
RegisterTCPServer
Error Conditions
If an error condition occurs during a call to any of the functions in the LabWindows/CVI TCP
Library, the status return value contains the error code. This code is a non-zero value that
specifies the type of error that occurred. Error code return values are negative numbers. The
currently defined error codes and their associated meanings are shown in Table 7-3.
Table 7-3. TCP Library Error Codes
Code Error Message
0
kTCP_NoError
-1
-kTCP_UnableToRegisterService
-2
-kTCP_UnableToEstablishConnection
-3
-kTCP_ExistingServer
-4
-kTCP_FailedToConnect
-5
-kTCP_ServerNotRegistered
-6
-kTCP_TooManyConnections
-7
-kTCP_ReadFailed
-8
-kTCP_WriteFailed
-9
-kTCP_InvalidParameter
-10
-kTCP_OutOfMemory
-11
-kTCP_TimeOutErr
-12
-kTCP_NoConnectionEstablished
-13
-kTCP_GeneralIOErr
-14
-kTCP_ConnectionClosed
-15
-kTCP_UnableToLoadWinsockDLL
-16
-kTCP_IncorrectWinsockDLLVersion
-17
-kTCP_NetworkSubsystemNotReady
-18
-kTCP_ConnectionsStillOpen