From: George Foot <mert0407 AT sable DOT ox DOT ac DOT uk>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: HELP!!![Allegro] Datafile problem!!!
Date: 16 Jun 1998 21:58:48 GMT
Organization: Oxford University, England
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On Mon, 15 Jun 1998 17:49:41 -0400 in comp.os.msdos.djgpp Nicolas
Blais <eletech AT netrover DOT com> wrote:

: void show_centered_bmp(char filename[20],int y)
:      {
:      BITMAP* bmp;
:      PALETTE pal;
:      bmp = load_bmp(filename,pal);
:      masked_blit(bmp,screen,0,0,(SCREEN_W-bmp->w)/2,y,bmp->w,bmp->h);
:      destroy_bitmap(bmp);
:       }
: show_centered_bmp(datafile[Title_Main].dat, 100);

Your function expects to be given a filename, and then loads, displays
and destroys the bitmap.  However, you're passing it a pointer to an
already-existing bitmap.  You have two choices:

a) Modify the function so that it takes the BITMAP * and just displays
   it (no loading or destroying)

b) Modify the call so that it uses the syntax described in grabber.txt
   to refer to objects in datafiles:

       show_centered_bmp ("datafile.dat#Title_Main", 100);

   perhaps -- it depends on the filename of the datafile and the object
   name of the bitmap.

See the file `grabber.txt' in Allegro's `tools' subdirectory for
details.

-- 
george DOT foot AT merton DOT oxford DOT ac DOT uk

xu do tavla fo la lojban  --  http://xiron.pc.helsinki.fi/lojban/lojban.html