# Synopsis

(macro) void mpm_SetFmtSpec(char *spec, PDX_MSGT (*function) (long option, MPM_FMT *fmt, va_list *ap))

# Purpose

Set a message processor format specification.

# Description

This function will set the specified format specification and the function to invoke if this specification is used.

# Input

## spec

Specification

## function

Function to invoke option not used fmt format ap va_list *ap