Good question. I just detect how long the mouse has been down, before
turning it from a click into a mouse-drag sort of submit. Semi-easy.
>For 2 and 3,
>Have any browsers already implemented this?
The Emacs-w3 browser has support for this, but it is broken right now
because of a limitation of lucid emacs. It sends the results (x,y) in
relation to the entire emacs frame, not the actual image. Next version of
Xemacs will hopefully have this feature built in. But the groundwork is
there, so it will take about 3 minutes to add 'real' support once emacs
supports the necessary primitives.
I imagine that Pei Wei could add this to Viola-WWW pretty quickly if
he hasn't already. Working in an interpreted language is so much
nicer/faster for prototyping things like this.
>Sorry if this has been asked before.
Don't think it has - good point though. Perhaps we need another
tag? ISDRAG to complement ISMAP?
-bp