Does anyone know about WM_SETFOCUS and EN_SETFOCUS

[Bill Medland]

Is anyone out there an expert in Windows focus handling?

I have problems with our application and the focus handling in places.

Basically it seems to me that there is some sort of logic in windows whereby 
the code calls PostMessage (WM_SETFOCUS) but the result is that the parent of 
the target window receives WM_COMMAND EN_SETFOCUS instead.

Does anyone know anything about such translations?