[MSDN Library June 1998] WM_NCLBUTTONUP (50.311004784689%)

MSDN Library Visual Studio 6.0 > Platform SDK > User Interface Services > User Input > Mouse Input > Mouse Input Reference > Mouse Input Messages

[MSDN Library April 2000] WM_NCLBUTTONUP (50.311004784689%)

MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows User Interface > User Input > Mouse Input > Mouse Input Reference > Mouse Input Messages