Re: How do I make HOTKEYS in ADA?

[jsa@alexandria (Jon S Anthony)]

In article <Dz24vt.1ox@thomsoft.com> kst@thomsoft.com (Keith Thompson) writes:

> In <JSA.96Oct8161800@alexandria> jsa@alexandria (Jon S Anthony) writes:
> > In article <3256B8C7.18F9@access.hky.com> Randy Kosarik <randyk@access.hky.com> writes:
> > > 	I need to know if I can get ADA to scan the keyboard and return the
> > > ASCII value if a keystroke was made.
> > Look up Get_Immediate.
> > > This also cannot stop the execution
> > > of the program and wait for <ENTER>.
> > You will need to use tasks or ATC for this.
> 
> Not necessarily.  There's a form of Get_Immediate that returns immediately
> if no character is available for input.  Whether this is implemented
> "properly" is another question.  (I put "properly" in quotes because
> there's some question about what the language really requires; the
> expected behavior, though, is pretty clearly what you're looking for.)

Well, yes, but I didn't read that as acceptable either.  What you are
suggesting is some sort of "loop based scenario".  But this could
cause odd and unacceptable timing skews: check for character.  Nothing
at this moment.  Drop to next part of loop.  Do this work (might take
a while).  Mean time user is hitting key wondering what the #@&% is
wrong.  Finally get back to check for character...

To me, this sort of thing (and its attendent poor program structure)
is unacceptable C style rubbish.

/Jon
-- 
Jon Anthony
Organon Motives, Inc.
Belmont, MA 02178
617.484.3383
jsa@organon.com