I’m currently working on a plug-in that uses VSTGUI’s “Animation Knob” view type for knobs.
When changing such a knob in the VST3PluginTestHost, click+holding it and moving the mouse up/to the right increments its value, click+holding and moving the mouse down/to the left decrements its value.
In FL Studio and Reaper, an Animation Knob instead turns “towards where your mouse is” (for lack of better wording) when click+holding it, so to sweep through different values, you need to do a circle movement around the knob with the cursor.
I don’t have any other DAWs to test this with, so I don’t know how it behaves for them. Is there a way to make this not be host dependent, and if so, how?