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From: veerabad@buster.uucp (Vibhu Veerabadrappa)
Newsgroups: comp.windows.x
Subject: Re: XDrawRectangle w/ negative width/height?
Message-ID: <1991Feb6.153235.26863@msuinfo.cl.msu.edu>
Date: 6 Feb 91 15:32:35 GMT
References: <2124@cs.rit.edu>
Sender: news@msuinfo.cl.msu.edu
Organization: Michigan State University, College of Engineering
Lines: 40

In article <2124@cs.rit.edu> mxh5795@cs.rit.edu (Michael X Houwers) writes:
>
>
>
>Hello.  I was wondering if there are any known bugs in the function
>XDrawRectangle in Xlib.  I was attempting to write a limited drawing

I do not know if there are any bugs, but I too feel it is rather wierd. 
But if when I tried to draw a rectangle with negative width and height, 
without the rubberbanding, it works fine ... 

>program (boredom is a wonderful motivator...), which, at the moment
>draws lines and rectangles with a "rubberbanding" effect.  To draw a
>line in the drawing window, you hold down the left mouse button and

[ Stuff deleted ]

>So, the question is:  can you specify a negative width or height for
>a rectangle with no unexpected side effects, and, if that is legal,
>are there any known bugs when doing this?
>
>Any help would be greatly appreciated..

One way to eliminate the trail, as I did, is to draw the rectangle from
the "other" corner, with positive width and height.

>
>Thanks,

Sorry, I could not answer your question fully.

>mike houwers

----Vibhu.
 
>--
>---------------------------------------------------------------------------
>Michael Houwers                     "I'm not sleazy, I"m morally challenged"
>bitnet:  MWH5795@RITVAXA            
>internet:  mxh5795@cs.rit.edu