From: "Edmund Horner" <ejrh AT paradise DOT net DOT nz>
Newsgroups: comp.os.msdos.djgpp
References: <39cd90d5_4 AT spamkiller DOT newsfeeds DOT com>
Subject: Re: Passing a datafile to a function
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Date: Sun, 24 Sep 2000 17:42:04 +1200
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To: djgpp AT delorie DOT com
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Try this:

    int w = ((RLE_SPRITE *)image[map[0][0]].dat)->w;
    int h = ((RLE_SPRITE *)image[map[0][0]].dat)->h;

I have added an extra pair of parantheses to each line.

Edmund.


"23yrold3yrold" <cbarry AT pangea DOT ca> wrote in message
news:39cd90d5_4 AT spamkiller DOT newsfeeds DOT com...
> Hello. I've been working on a tilemap drawing function using Allegro. I've
> got it working beautifully except for one small detail; the function is
> supposed to get the width and height of the tile sprite from the ->w
and ->h
> of the RLE_SPRITE in the datafile passed to it, but it won't work. The
below
> code results in an error, saying that I can't check the w and h values of
> image.dat because it's a void pointer. If anyone can help me with this I'd
> really appreciate it.
>
>
> Chris
>
> void DrawTilemap(BITMAP *buffer, DATAFILE *image, vector<vector<int> >
map,
> int x = 0, int y = 0, int cl = 0, int repeat = 0)
> {
>    ........
>    int w = (RLE_SPRITE *)image[map[0][0]].dat->w;
>    int h = (RLE_SPRITE *)image[map[0][0]].dat->h;
>    ........
> }
>
>