[ros-kernel] best way to store the data for Window Procedures?

[Jonathan Wilson]

Basicly, this method needs to:
1.be expandable at run-time
2.be capable of holding a data structure that looks like this:
struct WndProcHandle
{
   WNDPROC WindowProc;
   BOOL IsUnicode;
};
or a pointer to same
3.be usable in win32k
4.be indexable using just a 2-byte number
and 5.be the most sutable method for doing this

Once someone can suggest how this should be done (and also assuming no-one 
has anything negative to say about my implementation ideas for this Window 
Procedure stuff), I will implement the 8 window-procedure related fixes I 
have been talking about.