I have searched for Unicode change in the windows.inc and see only unicode prototypes.
There is also UNICODE messages:
Quote
SB_SETTEXTA equ < WM_USER + 1>
SB_SETTEXTW equ < WM_USER + 11>
and UNICODE CLASS
Quote
; RichEdit 2.0 Window Class
; On Windows CE, avoid possible conflicts on Win95
CERICHEDIT_CLASSA equ <"RichEditCEA">
CERICHEDIT_CLASSW equ <"RichEditCEW">
RICHEDIT_CLASSA equ <"RichEdit20A">
RICHEDIT_CLASS10A equ <"RICHEDIT">
IFNDEF MACPORT
RICHEDIT_CLASSW equ <"RichEdit20W">
ELSE
RICHEDIT_CLASSW equ <"RichEdit20W">
ENDIF ; MACPORT