Aric Stewart aric@codeweavers.com wrote:
I know this is not official MSDN documentation but this appears to disagree with you. http://www.catch22.net/tuts/neatpad/11
It also makes sense to have all the complex script processing logic in one place instead of spreading it out and duplicating it.
Bidi and reordering were supported by gdi32 before Uniscribe has been introduced.
Accridong to http://msdn.microsoft.com/en-us/goglobal/bb688137.aspx uniscribe is used by lpk.dll (language packs): "ExtTextOut can be used to lay out multilingual Unicode text including complex scripts. There is no need for you to do anything other than call ExtTextOut; it handles everything for you."
Why do you say that Windows gdi32 does not use usp10? I do not see a direct dependency but I have not traced inside to see if it is doing LoadProcAddress or the like.
Inspecting strings in gdi32.dll should be enough.