usefull info on GDI internals but more is needed

[Jonathan Wilson]

http://msdn.microsoft.com/msdnmag/issues/03/01/GDILeaks/
It indicates that there is a table that holds GDI internals and gives 
details about it.
I can also confirm that the API call GdiQueryHandle in gdi32.dll retrieves 
pointer to this handle table.

Does anyone have any more info related to how GDI handles work, what the 
different bits mean, how to turn a gdi handle into an entry in the shared 
handle table, the internal structures behind the pointers or whatever?

Is anything more given in Windows Graphics Programming: Win32 GDI and 
DirectDraw that would help with this?