Can anybody help????

I have a Vb.Net "Addin" that listens to Solidworks "close" events on assemblies, parts and drawings. This works OK!

When I close a document (assembly, part or drawing) the addin, for example only!!!, shows a "yes, no" message box.

If I press "Yes" the document closes as normal. This works OK!

But,

If I press "No", is it possible, with the "addin" to stop the document from closing???

Please see the attached file.

Many thanks in advance!!!

Darren