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From: ibmman@eng.clemson.edu (Larry Salomon)
Newsgroups: comp.os.os2.programmer
Subject: Re: GPI Question
Message-ID: <13237@hubcap.clemson.edu>
Date: 21 Feb 91 22:55:26 GMT
References: <1991Feb20.211007.8081@terminator.cc.umich.edu>
Sender: news@hubcap.clemson.edu
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Lines: 21

What about this:

Given rectl of type RECTL containing the box you want to draw...

GpiMove(hps,(PPOINTL)&rectl.xLeft);
GpiSetColor(hps,CLR_BLACK);
GpiBox(hps,DRO_OUTLINE,(PPOINTL)&rectl.xRight,0L,0L);
WinInflateRect(hab,&rectl,-sCxThick,-sCyThick);
GpiMove(hps,(PPOINTL)&rectl.xLeft);
GpiSetColor(hps,CLR_RED);
GpiBox(hps,DRO_OUTLINE,(PPOINTL)&rectl.xRight,0L,0L);

Of course, you should have 

#define INCL_GPIPRIMITIVES
#define INCL_WINRECTANGLES

at the top of the file.

Cheers,
Q