Trogs Knob (Bitmap)

[billv]

Thanks Jay + Trog....

[Nubeat7]

i saw that in the presetparameters the display input is connected, i always asked myself , where is this displayed?

[trogluddite]

display input is connected, i always asked myself , where is this displayed?

That depends on your VST host - it's an optional thing, so it doesn't always get used. For example, some hosts will show the display string when you are editing automation data in the sequencer windows, so that you can see useful parameter values instead of always 0...1.
To be honest, I've never really checked in my hosts to see how well it works - but since the string was already there in the Ruby code, I thought I may as well send it to the VST parameter anyway.