All of them are exported by user32.dll from NT4SP6a CascadeChildWindows ClientThreadSetup DdeGetQualityOfService DrawCaptionTempA DrawCaptionTempW DrawFrame DrawMenuBarTemp EditWndProc FullScreenControl GetAccCursorInfo GetAppCompatFlags GetInputDesktop GetInternalWindowPos GetProgmanWindow GetTaskmanWindow KillSystemTimer LoadKeyboardLayoutEx LoadLocalFonts LoadRemoteFonts LockWindowStation MBToWCSEx MB_GetString MenuWindowProcA MenuWindowProcW PrivateExtractIconExA PrivateExtractIconExW PrivateKDBreakPoint QuerySendMessage RegisterLogonProcess RegisterSystemThread RegisterTasklist ScrollChildren SetConsoleReserveKeys SetCursorContents SetDeskWallpaper SetInternalWindowPos SetLogonNotifyWindow SetProgmanWindow SetSysColorsTemp SetSystemMenu SetSystemTimer SetTaskmanWindow SetWindowStationUser ShowStartGlass TileChildWindows TranslateAccelerator TranslateMessageEx UnlockWindowStation UpdatePerUserSystemParameters UserClientDllInitialize UserRealizePalette UserRegisterWowHandlers WCSToMBEx
Have a look in Wine API (http://source.winehq.org/WineAPI/) for the following functions:
DrawCaptionTempA DrawCaptionTempW GetAppCompatFlags GetInternalWindowPos GetProgmanWindow GetTaskmanWindow KillSystemTimer LoadLocalFonts PrivateExtractIconExA PrivateExtractIconExW RegisterLogonProcess RegisterSystemThread RegisterTasklist ScrollChildren SetDeskWallpaper SetProgmanWindow SetInternalWindowPos SetLogonNotifyWindow SetSystemMenu SetSystemTimer SetTaskmanWindow SetWindowStationUser TranslateAccelerator