Custom Control and how to automate it?

I'm trying to automate the installation of CleanUp! There seems to be a custom control (image below)

It looks like a slider but AutoIt's Window Info says it's a Button.

Moving the slider the only thing that changes is the ControlClick Coords.

I've tried Spyxx and the logs are so verbose (even with a minimal amount of logging) I get lost in file. That and I don't know what I'm looking for and if I found a custom message how to use it.

So I'm here asking how I can automate this control.

I would love to move the slider.

I also would like to be able to get the value of the slider's current position.

Any help would be appreciated.

Thanks.