Injecting a VB6 dll and manipulating the UI

Hi guys.

I am new here. I'll try to keep it simple.

Mission: Manipulate a legacy VB6 app UI.

The strategy:
1. Create a VB6 ActiveXDll
2. inject it into the process using SetWindowHookex
3. set a timer for handling execution outside the handler itself
4. Do as I please with the UI

I have reached step 4 after much effort, Yet I find no way to access the forms.
I have read that the 'Forms' collection is not accessible via activex dll. as a matter of fact - the entire VB.Global is not accessible.

So my friends - any VB6 guru here can show me the way?
Given that I have an dll that is running - is it possible for me to gain access to the open forms?

(I thought about obtaining the IAccessible pointer and then try to manipulate it into a form "pointer" yet I find no clues for that, nor do I know if the form class itself is COM accessible, or what is it's COM GUID if any.)

Thank you!