Int 60  u - Hp 95lx System Manager - Let System Manager Handle Menu Keyst  [b]

   DI = 0204h
   STACK:  2 WORDs unused dummies (for calls from high level languages)
       DWORD   pointer to menu data (see #2952)
       WORD    keystroke
       DWORD   pointer to WORD to receive selection number

Return: buffer for selection number filled with index of selected menu item or
     FFFFh if no final selection yet
   STACK unchanged

See Also: INT 60/DI=0200h,INT 60/DI=0202h,INT 60/DI=0207h