Re: how and why does keyboard input unhighlight the mouse-selected region?

[Kevin Rodgers]

Sandip Chitale wrote:

> This may be the answer.
>
> deactivate-mark's value is t
>
> Documentation:
> If an editing command sets this to t, deactivate the mark afterward.
> The command loop sets this to nil before each command,
> and tests the value when the command returns.
> Buffer modification stores t in this variable.

Yes, but even if I set it to nil with `M-:', select a region with the
mouse, and type a prefix character (C-h), the highlighting goes away.  I
can examine its value with `M-:' after selecting the region, which verifies
that it is still nil.  Merely typing a key causes the the highlighting to
disappear, even though no command has been executed.

--
Kevin Rodgers