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WebsydianExpress uses a set of new abstract functions. For each of the functions, the corresponding function in standard Websydian is specified with a link to the documentation for the pattern. When developing for WebsydianExpress you must use the new abstract functions instead of the old.
In some cases it will be necessary to consult the documentation for the standard Websydian function in order to find out how a WebsydianExpress pattern is used.
It is possible to make a multiple inheritance from a combination of one or more abstract standard Websydian functions and one or more of the new abstract functions.
Never change the parameter interface for a custom field function.
Changing the parameter interface can cause WebsydianExpress to terminate with a runtime error.
For more information on how to develop a custom field function in Plex please look in Create Custom Field Functions.
The abstract functions described in this section provides the functionality for creating your own messages that can be written to the WebsydianExpress Message Log and for creating your own functions for returning texts using the language support built in to WebsydianExpress.
These abstract functions are used to implement web services in Websydian Express.
Note that some of these abstract functions are placed in the WSYAPIWS model - not in the WSYAPI model.
Online documentation - WebsydianExpress v3.0