Solaris X Window System Developer's Guide

NumLock Key Support

The OpenWindows version of Xlib supports NumLock Key processing through calls to XLookupString. This change does not affect the NumLock processing that exists in XView, OLIT, Motif, or X applications.

x86 only –

On IA keyboards, the NumLock Key resides in the top line of the keypad section of the keyboard.