Date: 28 June 1982 7:58 pm PDT (Monday)
From: BURTON.PA
Subject: Package for reading numbers via a menu
To: LispUsers^
Reply-To: BURTON


The file READNUMBER on <lispusers> contains functions for implementing a
calculator type menu for getting numbers from the user.  

(RNUMBER MSG POSITION MSGFONT DIGITFONT)                  [function]
brings up a menu that looks like a calculator number pad.  The user's selections
on the digits are accumulated in a displayed total.  The number pad includes a
backspace key (bs), a clear key (clr) and an +/- key (-).  When 'ok' is selected,
the total is returned.
If MSG is given, it is printed at the top of the menu. If POSITION is a position,
the menu will be put there; otherwise it will be put under the cursor.  If
MSGFONT is a font, MSG will be printed in it.  If DIGITFONT is a font, the
labels on the number pad keys will be printed in it.  The default for MSGFONT
is '(helvetica 12).  The default for DIGITFONT is '(helvetica 18).

Example of use:

(RNUMBER '(How many WIDGITS would you like?))