Protect Document (lock shapes)...programmatically

[John]

In Visio 2000, you can go to the Drawing Explorer and select Protect
Document to lock down all the shapes and connectors on a drawing so they
can't be moved around.

I'm using Visio via the C++ wrapper classes in a custom application and need
to do this programmatically. I can't find a way to use the provided objects
to do this.

Can this be done? Can I use this function programmatically?

Thanks!