* include/winuser.h (BroadcastSystemMessage, BroadcastSystemMessageA,
BroadcastSystemMessageW, BroadcastSystemMessageEx,
BroadcastSystemMessageExA, BroadcastSystemMessageExW,
BSMINFO, BSF_ALLOWSFW, BSF_SENDNOTIFYMESSAGE, BSF_LUID,
BSF_RETURNHDESK): Add functions and constants.
* include/winuser.h (EnumDisplaySettingsEx, EnumDisplaySettingsExA,
EnumDisplaySettingsExW, EDS_RAWMODE): Add functions and constant.
* include/winuser.h (IsGUIThread, IsHungAppWindow, FlashWindowEx,
GetProcessDefaultLayout, SetProcessDefaultLayout,
RealChildWindowFromPoint, SetProcessDefaultLayout,
SwitchToThisWindow): Add functions.
* lib/user32.def (BroadcastSystemMessageA, BroadcastSystemMessageW,
BroadcastSystemMessageExA, BroadcastSystemMessageExW,
EnumDisplaySettingsExA, EnumDisplaySettingsExW, FlashWindowEx,
GetProcessDefaultLayout, IsGUIThread, IsHungAppWindow,
RealChildWindowFromPoint, SetProcessDefaultLayout,
SwitchToThisWindow): Add function.