Message-ID: <350B7C5F.B8FD882F@wpol.com>
From: John & Sue Kissell <jdk AT wpol DOT com>
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Newsgroups: comp.os.msdos.djgpp
Subject: Re: HELP: Generic array pointer passed to function.
References: <350B4789 DOT 282833FC AT wpol DOT com> <350B3C07 DOT 575D7E62 AT cornell DOT edu>
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Date: Sun, 15 Mar 1998 03:51:06 GMT
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To: djgpp AT delorie DOT com
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Thank you Sinan, I'll give it a try. A union is a good idea, the two simple
functions and structures that I included are just a minor portion of what I
need to code.

A. Sinan Unur wrote:

> John & Sue Kissell wrote:
> >
> >  I need help in how to describe a generic array pointer passed to a
> > function.
>
> i don't think you ment array pointer here.
>
> anyway, for your purposes, you might want to consider the following:
> (i will have to add that this is kinda off-topic, but i thought it might
> be useful. in any case, this sort of C questions would get better
> answers in forums such as comp.lang.c.moderated.)
>
> i have a feeling the code below makes a case for using C++ ;-)
>
> /*
>  * constants for different kinds of windows
>  * for code that might need the information
>  */
>
> #define WT_WINDOW 0
> #define WT_BUTTON 1
> /* etc */
>
> typedef struct TAG_BUTTON_DATA
> {
>    int    x1;
>    int    y1;
>    int    x2;
>    int    y2;
>    int    state;
>    int    frame;
> } BUTTON_DATA;
>
> typedef struct TAG_WINDOW_DATA
> {
>  char* title;
> } WINDOW_DATA;
>
> typedef union TAG_DATA
> {
>   BUTTON_DATA button;
>   WINDOW_DATA window;
> } DATA;
>
> typedef struct TAG_WINDOW_T
> {
>   int type;
>   int length;
>   int height;
>   int x;
>   int y;
>   COLOR_GROUP *color;
>   BITMAP *map;
>   DATA d;
> } WINDOW_T;
>
> void paste(WINDOW_T *w, BITMAP *m)
> {
>   int tmp=mouseflag;
>   if (tmp)
>     MouseOFF();
>   blit(w->map, m, 0, 0, w->x, w->y, w->length, w->height);
>   if (tmp)
>     MouseON();
>   return;
> }
>
>   -- Sinan