[MSDN Library April 2000] NM_CHAR (toolbar) (76.9565217391304%)

MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows Common Controls > Toolbar Controls > Toolbar Control Notification Messages

[MSDN Library April 2000] NM_CHAR (35.034423169973%)

MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows Common Controls > Common API > Notifications