Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!cs.dal.ca!dal1!ireland
From: ireland@ac.dal.ca
Newsgroups: comp.sys.mac.hypercard
Subject: Re: Scripting Question
Message-ID: <3740@ac.dal.ca>
Date: 22 Feb 91 19:44:24 GMT
References: <13258@hubcap.clemson.edu>
Lines: 25
Organisation: Dalhousie University, Halifax, Nova Scotia, Canada

In article <13258@hubcap.clemson.edu>, jcocon@hubcap.clemson.edu (james c oconnor) writes:
> I want a button to disappear when a field is empty and appear the
> instant a user types a character into it.  My code looks like this:
> 
> on keyDown theParm
>   send "keyDown" && theParm to this card
>   if me is empty then
>     hide card button "button"
>   else
>     show card button "button"
>   end if
> end keyDown
> 
> It works fine, except when the user types a space.  Then the message
> gets confused.  What gets passed is probably "keyDown  " and the second
> space isn't interpreted as the key.  Is there a good way around this?
> I'd like to avoid any hacks.
> 
> Jim

You could convert theParm to its ascii equivalent with chartonum(theParm).
I had to do this in a keydown handler in order to distinguish upper and lower
case letters.

Hope this helps, Keith Conover.   ireland@ac.dal.ca