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From: lasleyse@wam.umd.edu (Scott E. Lasley)
Newsgroups: comp.sys.mac.system
Subject: Re: Baloon Help Cosmetic Bug? (was Another Finder bug?)
Message-ID: <1991May24.235517.25997@wam.umd.edu>
Date: 24 May 91 23:55:17 GMT
References: <1991May22.235626.26064@am.dsir.govt.nz> <1991May24.220827.14428@lynx.CS.ORST.EDU>
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Organization: Space Physics Group, University of Maryland at College Park
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In article <1991May24.220827.14428@lynx.CS.ORST.EDU> boerned@mist.CS.ORST.EDU (Dan Boerner) writes:
>
>Again, just turn on Balloon help, click on the center of the a Finder
>window title, wait for the balloon to draw, drag the window up an inch and
>voila, an extra line is left in the window.
>
It took me several tries until I could reproduce this effect consistently.
I found that an extra step is necessary on my SE/30.  Here is how I cause
the extra line to be drawn
1) Turn on Baloon Help with the Finder in the foreground.
2) Position the mouse in a Finder window's title bar and wait for the 
   balloon to appear.  
3) Move the window.
4) Release the mouse button, and click it again before the balloon reappears.
   This was the crucial step for me.
5) Drag the window so that its outline is still within the picture of the old 
   window on the screen.
6) When the mouse button is released, the window is redrawn with the gray
   outline in the same position in the new window as it had in the picture
   of the window before it was dragged.  Yes, I know that sounds a bit 
   confusing, but try it and you'll see what I mean.

It appears that the outline of the window that is being dragged is not erased
before the window is drawin in its new position, and this outline is copied
to the newly drawn window.

I just found another way to reproduce this effect.

1) Have an application's window in the background with Balloon help on, and
   the Finder in the foreground.  Position the cursor over the window in the 
   background so that the This window belongs to.. balloon is displayed.
2) Quickly move the mouse to a Finder window's title bar and click on the
   title bar before the Title Bar balloon appears. 
3) Move the window so that its outline is still within the old window.
4) Release the mouse and look at the outline drawn in the newly positioned
   window.

Neat stuff :)