Re: Erroneous selection extension in Emacs version 22.1 for Win32

[Eli Zaretskii]

[Please keep the discussion on the mailing list.]

> Date: Sun, 10 Jun 2007 23:19:59 -0700 (PDT)
> From: Bostjan Vilfan <bvilf@yahoo.com>
> 
> The meaning of "extension of selection" is the one you gave: yellow area is 
> extended. On receiving your reply I repeated the experiment, and observed a 
> slightly nuanced outcome, as follows.
> 
> First of all, I used "runemacs -Q" as you did, although the result is the 
> same for a plain "runemacs". Then on the first try I loaded a file that was 
> larger than the emacs window (allowing the scroll bar to be used), then I 
> selected  a word on the second line (painting it yellow), and performed a 
> scroll. To my consternation, the operation was correct (without extension of 
> selection). However, I later found that the behavior was more complicated. 
> Correct behavior results only if the scroll is performed slowly. If the 
> scroll is performed quickly, extension of selection occurs. The interesting 
> thing is that once an extension of selection occurs as described, even a slow 
> scroll results in extension of selection.
> 
> After this I rechecked emacs version 21.3 for Win32, and found that no matter 
> how the scroll is performed, it always comes out correct.

I can confirm that with that recipe I can reproduce the problem on my
machine.  Thanks.