From: Marcus Rohrmoser <Marcus DOT Rohrmoser AT lrz DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: graphics with the grx library?
Date: Fri, 11 Jun 1999 11:57:53 +0200
Organization: Leibniz Rechenzentrum Muenchen
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This is a multi-part message in MIME format.
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GRX is THE best joice if you want portability. Allegro maybe is better,
if you don't need portability (beyond VGA on DOS/Linux). But I'm not
familiar with allegro.

See the attachment for a small example.

Marcus
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Content-Type: text/plain; charset=us-ascii;
 name="grxhello.c"
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Content-Disposition: inline;
 filename="grxhello.c"

/*
 * Compile on e.g. a sun:
 * gcc -I$HOME/lib/c -L$HOME/lib/c/sun grxhello.c -lgrx20 -lX11 -lsocket
 *
 */
#include <grx20.h>
#include <grxkeys.h>
int             main()
{
    char            message[] = "Hello, world!";
    float           frac = 0.40;
    GrTextOption    topt;

    GrSetMode(GR_biggest_noninterlaced_graphics);
    GrClearScreen(GrBlack());

    GrFilledBox(frac * GrSizeX(), frac * GrSizeY(),
		(1 - frac) * GrSizeX(), (1 - frac) * GrSizeY(),
		GrWhite());

    GrLine(10,50,GrSizeX(),GrSizeY(),GrWhite());

    /* topt.txo_font      = &GrFont_PC8x8; */
    topt.txo_font = &GrDefaultFont;
    topt.txo_bgcolor.v = GrOrModeColor(0);
    topt.txo_fgcolor.v = GrBlack();
    topt.txo_direct = GR_TEXT_RIGHT;
    topt.txo_xalign = GR_ALIGN_CENTER;
    topt.txo_yalign = GR_ALIGN_CENTER;
    topt.txo_chrtype = GR_BYTE_TEXT;
    GrDrawString(message, strlen(message), GrSizeX() / 2, GrSizeY() / 2, &topt);

    GrKeyRead();
    GrSetMode(GR_default_text);
    return 0;
}

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