[MSDN Library April 2000] WM_CTLCOLORMSGBOX (100%)
MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows User Interface > Windowing > Dialog Boxes > Dialog Box Reference > Dialog Box Messages
[MSDN Library September 1992] WM_CTLCOLORMSGBOX (50%)
Product Documentation > Win32 SDK for Windows NT > Programmer's Reference: API (prelim. ) > API Function Reference > Messages
[MSDN Library April 2000] WM_CTLCOLORMSGBOX (41.7763157894737%)
MSDN Library - April 2000 > Windows CE Documentation > Application Development > API Reference > User Interface > Messages