Progress
Programming
Handbook
Internal Procedures
An internal procedure is a block of code defined within an external procedure that you can execute by name within the context of the containing external procedure. Internal procedures allow you to modularize your code and reduce the number of external files in an application. A single external procedure (.p or .w) can contain any number of internal procedures.
NOTE: There are actually two types of internal procedure: 4GL and DLL internal procedures. This section applies mainly to 4GL internal procedures. DLL internal procedures provide access to DLL functions on Windows. While DLL internal procedures execute different code than 4GL internal procedures, you call them by name in the same way as any 4GL internal procedure. For more information on defining and using DLL internal procedures, see the Progress External Program Interfaces manual.
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