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From: ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab)
Newsgroups: comp.sys.amiga
Subject: Re: where is SetDrPt ?
Message-ID: <3954@well.UUCP>
Date: Tue, 15-Sep-87 15:01:19 EDT
Article-I.D.: well.3954
Posted: Tue Sep 15 15:01:19 1987
Date-Received: Fri, 18-Sep-87 01:19:25 EDT
References: <2334@batcomputer.tn.cornell.edu>
Reply-To: ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab)
Distribution: comp
Organization: The United Federation of Planets.
Lines: 31
Keywords: SetDrPt
Summary: It's a macro in graphics/gfxmacros.h

In article <2334@batcomputer.tn.cornell.edu> hsgj@batcomputer.tn.cornell.edu (Dan Green) writes:
>
>I finally decided to do some graphics-type programming on my Amiga,
>and I have run into a little difficulty.  I can't seem to find the
>Kernel Graphics function 'SetDrPt'.  [ ... ]  Either:
>	a) I am terribly confused.
>	b) The function has a new name from what it was called in
>	   the RKM.
>	c) The function was never implemented, or was removed by C/A.
>Can anyone enlighten me as to which of these is true?
>
	d) It is not a function; it is a #defined macro.

	Go to the top of your source code and include the line:

#include <graphics/gfxmacros.h>

	You might want to briefly inspect this file, as there are a number
of macros in this file which might otherwise be mistaken for functions.

	And now a question to the wizards at C-A (this means you, Dale!):
Whyzzit that SetDrPt(), SetOPen() et al are macros, but SetAPen() and
SetBPen() are real library calls?  Further, when I tried turning SetAPen()
into a macro many moons ago as an experiment, things broke left and right.
What exactly does SetAPen() do that prevents its existence as a macro?

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