RE: select and META key

[A Soare <alinsoar@voila.fr>]

> >> > >1. Emacs -Q
> >> > >
> >> > >2. open en elisp file. for example edebug.el
> >> > >
> >> > >3. Press left mouse button and select a region. Before to release left
> >> > >mouse button press ALT. While keepeng ALT pressed release mouse button
> >> > >
> >> > >Result: a region is selected, and it cannot be unsected.
> >> > >
> >> > >This is a bug or an feature of emacs unknown by me?
> >> >
> >> > I think it is secondary selection.  See also (info "(emacs) Secondary
> >> > Selection").
> >> >
> >> >
> >>
> >>
> >>You are right. Thanks.
> >
> >However, there is surely a bug.  Since you press the Meta key
> >only before releasing mouse-1, the event is slightly different from
> >pressing the Meta key before pressing mouse-1: in the former
> >case the first event is `down-mouse-1', and in the latter the
> >first event is `M-down-mouse-1'.  Although the outcome is the
> >event `M-drag-mouse-1' in both cases, `mouse-drag-secondary'
> >seems not to get executed and other secondary selection
> >relating commands, such as `mouse-yank-secondary' fails to be
> >executed.
> 
> And the opposite behaves in this way:
> 
> 1. Press M-mouse-1 to generate a M-down-mouse-1 event.
> 2. Move mouse to generate a mouse-movement event.
> 3. First release the Meta key and then mouse-1.
> 
> The outcome is drag-mouse-1 event.  However, secondary
> selection has been successfully executed and pressing
> M-mouse-2 can certainly yank secondary selected texts.
> 
> Are these behaviors desired?
> 


I do not have time now for this issue. I will check as soon as I do.

It is just evervant because the selection does not dissapear.


Thanks.