RICHEDIT again

[Krzysztof Foltman]

It seems that I already have something useful. I've added multilevel 
undo/redo, GetCharFormat/SetCharFormat (very incomplete) and modify 
flag, and cleaned up the code a lot. The source code is downloadable 
from here:

http://foltman.com/richtext-20050204.tar.gz

I'll try to add handlers for basic editing messages (like WM_SETTEXT) 
and maybe notifications too, DLLize it and then make a Wine patch out of 
it. Is that OK ?

It's not like everything is done the way it should be (for instance, 
coordinate system is still pixel-based and not twips-based), but in this 
stage the risk of having to constantly rewrite everyone else's code is 
much lower.

Krzysztof