How well does Mono reveal functionality of closed-source equivalents?

I'm trying to document some aspects of VBA. In particular, I'm trying to document VarType.

To this end, I would like to examine the source code for the Information class in the .NET framework namespace of Microsoft.VisualBasic. Unfortunately, the source code for the VarType function appears to be unavailable—only the prototype for the function appears to be released by Microsoft's Reference Source site. [EDIT - have now actually found official Microsoft release of source code here.]

Can Mono help with this? Perhaps you could give me advice on how to discover how VarType functions. I've already consulted the VBA documentation (including the language specification), & internet searched regarding this issue extensively. I've created a Stack Overflow question regarding a particular query regarding VarType here.

Thanks.

[rolfbjarne]

The CoreFX implementation is also available here.

It seems you've found the answer to your question yourself, so I'm closing this.

Hello @rolfbjame.

Unfortunately, the source code doesn't appear to be helpful as it doesn't indicate whether non-IDispatch pointers are not vbObject objects. Do you by any chance have any advice in regard to discovering the behaviour of aspects of the VBA language in particular?

Thanks.

[rolfbjarne]

@markfern no, I'm sorry but I've no idea.