From:	Radical NetSurfer <radsmail AT juno DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Allegro392 NOT HAPPY!
Date:	Mon, 26 Jun 2000 09:26:09 -0400
Message-ID:	<m0melsoth85c48qbomarbt377h7if1pin4@4ax.com>
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

I finally decided to download a try out the new W.I.P....

I have set this up (properly) so that I can still compile with the
dependable Allegro 3.1.2, and yet use 3.9.2 also...
(simply add the version numbers to the end of the names for
 includes and libs!)

NOW:
 compiling my project in 3.1.2. -->  383,488 bytes
                                     3.9.2.  --> 610,816
                       DIFFERENCE:      227,328

WHY?  is this?  I have not had the time to read through
all of the new 3.9.2. features and options.....

In the meanwhile:

Problem 1:
In 3.1.2: I wish to learn if and when a bitmap pointer has actually
been assigned.....
I have something like:
BITMAP *a_bmp=NULL;

a_bmp = create_bmp(z, q);

NOW: what is the proper way to determine if 'a_bmp' is still
un-assigned (NULL) or actually in use, SUCH THAT a
proper call to 'destroy_bmp()' works....
Apparently, calling   destroy_bmp()  crashes if the pointer is
actually unassigned....

Please give an example. Thanks.

Problem 2:

In 3.1.2: I wish to be able to call a single function, which will
   either load in an image to a bitmap,
    or 
   simply just create an empty bitmap,
   and return.....

   I want to call this function several times, and EACH time
REPLACING the contents of the Bitmap, with the NEW
image (raster)....
   Can someone PLEASE offer some suggestions how this
   might be accomplished?

THANKS!
Emails are welcomed:  radsmail AT juno DOT com

http://members.tripod.com/~RadSurfer/

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