Re: Binding a command to the down-event of a toolbar button

[Mathias Dahl]

>    I'm trying to add tool-bar buttons for "fast forward" and "rewind" in my
>    MPC.el package, and the way I expected it would work is that
>    down-mouse-1 on
>    those buttons would start the ffwd/rewind and the up event would stop it.
>
> Is such behavior normal in tool bars in other user interfaces?
> If not, I think we should not do it.

I have never seen such a functionality in a *tool-bar*. But buttons
like these are common in "media players" of all kinds, where the
buttons are often part of some "cool" or "groovy" GUI. I would not
expect a tool-bar button to do that, but that's just me.