Modified APIs

For Input Method Support

CreateWindowEx (Not Changed in OS/2 Warp Version 4)
DefDlgProc
DefFrameProc
DefWindowProc
TranslateMessage

For Keyboard Support

GetKeyNameText GetKeyState

For Locale Support

CharLower CharLowerBuff
CharUpper
CharUpperBuff
GetClipboardData (Not Changed in OS/2 Warp Version 4)
IsCharAlpha
IsCharAlphaNumeric
IsCharLower
IsCharUpper
lstrcmp
lstrcmpi
SetClipboardData (Not Changed in OS/2 Warp Version 4)

For Codepage Support

DdeConnect DdeCreateStringHandle
DdeQueryString

For Font Support

ChooseFont CreateFont
CreateFontIndirect
EnumFontFamilies
EnumFonts
GetOutlineTextMetrics
GetStockObject
GetTextAlign
SetTextAlign
GetTextMetrics
SelectObject

For Miscellaneous

GetSystemMetrics SystemParametersInfo