CPI-C Calls in C Programs (CPI-C)

This implementation of Common Programming Interface for Communications (CPI-C) is available to programs written in Microsoft® C version 6 or later.

The WINCPIC.H header file defines the prototypes for each CPI-C function. Other definitions include:

• Types specifically defined for use by CPI-C parameters.

• The structure of the side information entries.

• Symbolic names defined for integer parameters.

  To use CPI-C calls, the C program must include WINCPIC.H and declare the variables to be used in passing parameters on CPI-C calls.

  Note that you must define WIN32® before including WINCPIC.H

  For example:

#define WIN32  
#include <wincpic.h>  

In the case of strings, the program must also determine the preferred string length.