SNA Print Server Data Filter

This section introduces the SNA Print Server Data Filter API (sometimes referred to as the Print Exit API) that can be used to extend the capabilities of SNA Print Server. The user can provide a print data filter DLL that will be called by SNA Print Server when a print job is initiated, when data is sent to the printer, and when the print job is completed. This print data filter DLL can:

• Send data to the printer when a job starts (print a banner page, for example).
• Perform special processing on the data to be printed.
• Send data to the printer upon print job completion (print a trailer page, for example).