Property EnableMouseControlledPtz does not work

I’m writing the following code:

_imageViewer.EnableMouseControlledPtz = false;

But mouse control is still there.

Can you please tell me what to do. Thank you.

I experimented with the PTZandPresets sample, I modified these two lines:

        \_imageViewerControl.EnableMouseControlledPtz = false;

        \_imageViewerControl.EnableMousePtzEmbeddedHandler = false;   

(was originally both true)

then mouse controlled PTZ was disabled.

I cannot really see or explain why there are two properties and what the difference is. I hope you are satisfied it works if using both.