Listing 4 Header file for program helpdemo

/ FILE: helpdemo.h
//---------------------------------------------------------
#define STRICT

#include <windows.h>
#include <stdio.h>

#define GEN_EXIT           100
#define HELP_TOPICS        300
#define HELP_MERCURY  400
#define HELP_VENUS         500
#define HELP_EARTH         600
#define HELP_MARS          700

              /*  declare prototypes here */
long FAR PASCAL _export DemoProc (HWND, WORD,
     WORK, LONG);
void dopaint (HWND hWnd);
// End of File