[MSDN Library June 1998] DefFrameProc (34.468121968122%)

MSDN Library Visual Studio 6.0 > Platform SDK > User Interface Services > Windowing > Multiple Document Interface > Multiple Document Interface Reference > MDI Functions

[MSDN Library April 2000] DefFrameProc (33.2207207207207%)

MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows User Interface > Windowing > Multiple Document Interface > Multiple Document Interface Reference > Multiple Document Interface Functions