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Date: Wed, 13 Aug 1997 21:01:35 +0200 (MET DST)
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From: Didier Verna <verna@inf.enst.fr>
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To: xemacs-beta@xemacs.org
Subject: scrollbar arrow gets stuck down, buffer scrolls by itself
In-Reply-To: message <87afimndpv.fsf@bittersweet.inetarena.com> from Karl M. Hegbloom
References: <87afimndpv.fsf@bittersweet.inetarena.com>
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---- From Karl M. Hegbloom's message of August 13 (scrollbar arrow gets stuck down, buffer scrolls by itself):
>  See if you can get this to happen too.  Visit a long file, then split
> the window, with C-x 2, and then, click on one of the scroll arrows to
> get the scroll moving.  Then move the pointer off the arrow-button,
> quickly.  Try to time it so you move out of the arrow-button right
> when the clock (display-time) updates. (??)  The trough will flash a
> little, and the arrow will be stuck down, with the buffer scrolling.

	Aaaaarg ! tricky, your game ! I couldn't do it !

	But doesn't it look like an Xevent is lost (basicaly, <BtnUp>) ?
	If it's the case, you should be able to click again on the arrow,
	breathe, release the button, and everything should be ok.


>  Also, the tops of the 'foreign' (non-Oregonian) characters are left
> behind when you scroll.  They go away if you trigger refresh or wipe
> with another window.  Is that an off-by-one bug?

	Another problem related to this one appears with normal fonts,
	when in italics. As soon as the cursor blinks on the character,
	the rightest part of the character (usualy overlapping the left 
	side of the next character) is erased. I guess this has something
		to do with the way the cursor blink is implemented. 
        `	It's possible that when the cursor turns hidden, redisplaying
       / |	both the character and the previous one would be sufficient
      /  /	to solve this problem.
      `||
       ||	I'll look into it when you guys will be drinking and
       ||	signing keys I don't know where in a mysterious country
       ||	far away from here ;^}
   _   ||
  //|  ||
  || \_||
   \\           Didier Verna
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