RE: Selection threshold with mouse

[Drew Adams]

> When I set region using mouse from left to right, region expands at
> very end of each character.  Is it possible to set to threshold to the
> middle of a character instead of very end of a character?

Not too sure what you mean, but the region (selection) is the
sequence of characters between two buffer positions (point and mark).

Emacs buffer positions are always between characters (or before the
first character or after the last character).  They are never "on" a
character.