I'm not sure I understand your question, can't you just send 255 as a message and connect that to your sliders? A patch would help.

Interestingly, there aren't that many objects that respond to BOTH mousedown and mouseup (at least not that many I know of). One object that does respond to both is lcd. Another is mousestate. Here are solutions for each. Probably someone has already designed something using jsui, as well.

I use [ubutton] for these kinds of things, you can lay it over anything you want. Do check the "mouse released outside" outlet, you will probably need to incorporate that possibility into your clicking/releasing logic.

Oh, yeah. I forgot that ubutton does both. That's the simplest.

yep, ubutton is a good way, but it doesn't work in this case. I explain my project. I've a rough with 16 arduinos button that control 16 rgb led par. all par value are on 255, when a button is pushed 2 value go to 0. when the button is released, the values return to 255. I know, is a simple thing, but it drive me crazy. I'm working now on Christopher suggestion...

yep, I was working with 0 only on the select object. problem solved with select 0 1 .

I've found [pictctrl] to be the laziest way to do this since it outputs a 1 on mousedown and 0 on mouseup.