Progress
External Program
Interfaces


Writing C Functions

Figure 2–3 shows the relationship between the PRODSP() dispatch routine that Progress supplies and your C functions.

Figure 2–3: Relationship Between PRODSP() and Your C Functions

In general, your C functions can perform the following tasks:

Your C functions consist of functions called directly from PRODSP() (top-level functions), and functions called directly or indirectly from the top-level functions (subfunctions). All top-level functions must return control to Progress, regardless of the subfunctions called.


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