Int 15 Fn 03  - Vmix - "sys_pinput" - Prompted Console Input               [O]

   AH = 03h
   STACK:  DWORD   pointer to ASCII prompt
       WORD    field outline character
       WORD    length of input field (max 7Fh)
       DWORD   address of pointer to input buffer

Return: AX = length of input (input buffer is padded with blanks)

See Also: AH=04h"VMiX"