[MSDN Library April 2000] HIWORD (59.988038277512%)
MSDN Library - April 2000 > Windows CE Documentation > Application Development > API Reference > Core > Macros
[MSDN Library June 1998] HIWORD (50.8327199116673%)
MSDN Library Visual Studio 6.0 > Platform SDK > User Interface Services > Windowing > Windows > Window Reference > Window Macros
[MSDN Library April 2000] HIWORD (50.8327199116673%)
MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows User Interface > Windowing > Windows > Window Reference > Window Macros