/*
 *  CALC      Provides a calculator that opens on the active screen when
 *            you press a specific key sequence.  Otherwise, the program
 *            waits quitely in the background.
 *
 *              Copyright 1989 by Davide P. Cervone.
 *  You may use this code, provided this copyright notice is kept intact.
 */

#define INTUITION_PREFERENCES_H         /* don't need 'em */
#include <intuition/intuitionbase.h>
#include <exec/memory.h>
#include <devices/input.h>
#include <libraries/dos.h>
#include <libraries/dosextens.h>

#include "cSetup.h"


#define PROGRAM         "Screen Calculator"
#define COPYRIGHT       "Copyright 1989 by Davide P. Cervone"
#define LOADVERS        2

#define MINHMAJVERS     3
#define MINHMINVERS     1

#define HANDLERCODE     "L:Calc-Handler"        /* the handler file */
#define HANDLERTASKNAME "Calc-Handler"          /* the task name */


#define INTUITION_REV       0L
#define GRAPHICS_REV        0L
#define EXIT_OK             RETURN_OK
#define EXIT_ERROR          RETURN_ERROR

#define ONE                 1L


#define NEWPORT(p)\
   if ((p = CreatePort(0L,0L)) == NULL) DoExit("Can't Create p Port")

#define MEMFLAGS        (MEMF_PUBLIC | MEMF_CLEAR)

#define NEWSTRUCT(s,p)    (p = (struct s *)AllocMem(sizeof(struct s),MEMFLAGS))
#define FREESTRUCT(s,p)   FreeMem(p,sizeof(struct s))

#define NEWSTARTUP(s)   NEWSTRUCT(StartupMessage,s)
#define FREESTARTUP(s)  FREESTRUCT(StartupMessage,s)
#define GETSTARTUP(p)   ((struct StartupMessage *)GetMsg(p))


extern struct IntuitionBase *IntuitionBase;
extern struct GfxBase *GfxBase;

/*
 *  Offset values used by SetFunction
 */

extern long LVOCloseScreen;


extern struct Process *CreateProc();
extern long SetFunction();
extern struct MsgPort *FindPort();
extern struct MsgPort *CreatePort();
extern struct Process *FindTask();