HWINEVENTHOOK
The HWINEVENTHOOK data type defines a 32-bit type that identifies a window event hook function.
Remarks
This data type is used with the WinEventProc callback function and the SetWinEventHook and UnhookWinEvent functions.
Requirements
** Windows NT/2000/XP/Server 2003:** Included in Windows 2000 and later.
** Windows 95/98/Me:** Included in Windows 98 and later.
** Redistributable:** Requires Active Accessibility 1.3 RDK on Windows NT 4.0 SP6 and Windows 95.
** Header:** Declared in Winuser.h (WINVER >= 0x0500).