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Scrollwheel to control parameter

#1

Maybe a weird question… but is it possible to control a parameter with the scroll wheel of the mouse?

Have plans for a future plugin where this would be really nice.

#2

This works fine for me here. Are you having problem with it? Don’t forget you can also press ctrl to affect the sensitivity.

#3

I’ve been using my laptop touchpad for a little while because of a problem with my mouse, so I didn’t get a chance to test it. I will get a new mouse soon though :grin:

Thanks!

Edit: I was just curious if it was possible

#4

So I finally got to test it, and it works great. One thing I noticed though, if I use:
if (changed2(kSlider) == 1)

Using the mouse left button will trigger this if-statement, but if I only scroll the mouse wheel while hovering the slider, it will not trigger. Is this intended?

#5

That’s not the case for me here with my mouse? Scrolling the mouse wheel triggers it just fine. When you scroll, do you see the values of the slider moving?

#6

Hmm, you’re right, the issue is not that it doesn’t trigger, it’s something else…

ScrollWheel1
ScrollWheel1892×559 557 KB

#7

Oh yes, that’s a good one. Can you send me on your test .csd file? Thanks.

#8

XY-pad Test.csd (1.5 KB)

I tested now, and if you remove the first two if-statements, then the resizing works, so seems like there’s something with my code :thinking:

Edit: Seems like it’s the 2nd if-statement (elseif kMouseDown != 1 then)

#9

I think the issue here is that an identifier channel will only be modified/updated once per k-cycle. You are setting the ident channel continuously when the mouse is not pressed down:

elseif kMouseDown != 1 then
    SMessage sprintfk "pos(%d, %d)", kCurrentPosX, kCurrentPosY
    chnset SMessage, "ballIdent"
endif

You need to think the logic of this because moving a mouse wheel does not constitute a mouse down event.

#10

Ah thank you, I didn’t know about that!