Selecting windows with the mouse.

[Mike McMahon <MMcM at MIT-AI>]

    Date:  5 OCT 1980 2151-EDT
    From: dlw at MIT-AI (Daniel L. Weinreb)
    When you single-click-left on a non-selected editor window, the point
    gets moved to where you click.  This means that rather than just having
    selected the window, you have also changed its state, by messing up the
    position of point.  If you want to just plain select it, and want the
    position of point to stay the same (because it is somewhere useful), you
    have to double-click, and that warps the mouse.
    
    I don't think this is the right behavior (although I am not completely
    sure); it seems that there should be an easy way to simply select the
    window so that keyboard input goes to it, by pointing to it, and that
    since the way I always do that with any other program is with
    single-click-left, it ought to be that way for the editor too.
That is the way it used to work, but people complained that they could not point to a place
in a fully exposed window and go there, so full exposure is used as the criterion.  I have
no idea which is better or more consistent.