How to use vb.net to control the display checkbox?

Hi all, I have a problem, I want to use vb.net to control the checkbox,
see in the attached file, and how to do?

Hi @jerry1,

Sorry, I only know English. What is the parameter you are trying to uncheck? Are you using Rhino 5 or 6?

Thanks,

– Dale

Hi Dale,

I find english version show -- color backfaces

Jerry

Hi @jerry1,

I do not see a way to do this with RhinoCommon. I’ve created a wish list item for this.

https://mcneel.myjetbrains.com/youtrack/issue/RH-54180

– Dale