Closes communication with a server, which previously has been opened with a Login Function, synchronously or asynchronously.
Logout is actually a "virtual" operation which disposes the current Client Session ID. No DBMS logout is performed.
Please see Client Functions for information critical to the use of this function.
* hasError (only C) |
BOOL* |
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Only in C functions: bool pointer used in the C functions that indicates the return of the function is a system error and must be communicated to the Linkar SERVER
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* callback |
OperationAsyncCallbackString OperationAsyncCallbackLkData OperationAsyncCallbackClass ArrayList
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Return type in asynchronous methods. For further information see ASYNCHRONOUS CALLS |
* connectionInfo (only C) |
char* |
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Only in C Persistent Functions: string that is returned by the Login function and contains all the necessary connection data. This data is necessary in persistent functions.
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customVars |
string char* |
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This is a free text field to send in the transaction. If not empty, subroutine SUB.LK.MAIN.CONTROL.CUSTOM will be called. Add custom code to that subroutine to define special behaviours for some or all transactions.
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receiveTimeout |
Numeric
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-1 |
This is the maximum time in seconds that the client will wait for a response. Use 0 for no timeout. This is a function-specific override : -1 in a Persistent function defaults back to the timeout defined in the LinkarClt constructor. |
This function can generate exceptions.
In COM assemblies, a return value of type String will contain an error message if an error occurs when performing the operation.
