[MSDN Library June 1998] WM_WINDOWPOSCHANGING (52.6275917065391%)

MSDN Library Visual Studio 6.0 > Platform SDK > User Interface Services > Windowing > Windows > Window Reference > Window Messages

[MSDN Library April 2000] WM_WINDOWPOSCHANGING (52.6275917065391%)

MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows User Interface > Windowing > Windows > Window Reference > Window Messages