1. Playing CDs with Euphoria
- Posted by Alan Tu <ATU5713 at COMPUSERVE.COM>
May 20, 1998
-
Last edited May 21, 1998
I am making a concept program for personal use. Given a time, it would
play the music CD in the CDROM drive.
I think I can get Euphoria in a loop until the time element is what I wan=
t.
But I play CDs by pushing the button on the CD-ROM. Is there some sort =
of
interrupt I could use to do that and to jump to the next track?
--Alan
=
2. Re: Playing CDs with Euphoria
- Posted by Daniel Berstein <daber at PAIR.COM>
May 20, 1998
-
Last edited May 21, 1998
>I am making a concept program for personal use. Given a time, it would
>play the music CD in the CDROM drive.
>I think I can get Euphoria in a loop until the time element is what I want.
>But I play CDs by pushing the button on the CD-ROM. Is there some sort of
>interrupt I could use to do that and to jump to the next track?
Look at RDS site, on ther archive page is a file contributed by Jacques that
let's you control your CDROM (play, stop, next, etc...). Look at the source
code.
Regards,
Daniel Berstein
daber at pair.com
3. Re: Playing CDs with Euphoria
- Posted by Alan Tu <ATU5713 at COMPUSERVE.COM>
May 20, 1998
-
Last edited May 21, 1998
Thanks for the reply. I've downloaded the library you referred me to, an=
d
there are a few problems. Does anyone know what happened to sbcard.e, an=
d
when I need this library? Also, there is a function (actually a few)
involving the parameter word status which Euphoria wants a type (I think =
it
means sequence, atom, integer, or object). At this point, I just don't
know enough of Euphoria to pull up the sleeves and follow the program all=
the way through, let alone my doubts as to my archive's completeness. Oh=
well, no free lunch.
--Alan
=
4. Re: Playing CDs with Euphoria
I tried this program. Why doesn't it run in a loop until 20 minutes afte=
r
the hour?
atom t
sequence d
d =3D date()
t =3D 0
while t =3D 0 do
t =3D d[5] =3D 20
end while
system("c:\\cdp\\cdp.exe 2", 0)
=
5. Re: Playing CDs with Euphoria
I think you have to keep updating your variable d. See below.
> -----Original Message-----
> Subject: Re: Playing CDs with Euphoria
>
> I tried this program. Why doesn't it run in a loop until 20
> minutes after
> the hour?
>
> atom t
> sequence d
> d = date() <-- you can probably remove this line
> t = 0
> while t = 0 do
d = date() <-- add this line
> t = d[5] = 20 -- otherwise, d[5] is always what you had read into it
before the loop
> end while
> system("c:\\cdp\\cdp.exe 2", 0)
>
6. Re: Playing CDs with Euphoria
At 07:40 AM 5/21/98 -0400, you wrote:
>I tried this program. Why doesn't it run in a loop until 20 minutes after
>the hour?
>
>atom t
>sequence d
>d = date()
>t = 0
>while t = 0 do
-- d[5] never changes?
>t = d[5] = 20
>end while
>system("c:\\cdp\\cdp.exe 2", 0)
>
I don't know, but you might need to continue to check the time within the loop?
Joe Phillips, Assistant Director
University Computing and Telecommunications
Texas Wesleyan University 817-531-4284
7. Re: Playing CDs with Euphoria
Earlier, C. K. Lester wrote:
I think you have to keep updating your variable d. See below.
> -----Original Message-----
> Subject: Re: Playing CDs with Euphoria
>
> I tried this program. Why doesn't it run in a loop until 20
> minutes after
> the hour?
>
> atom t
> sequence d
> d =3D date() <-- you can probably remove this line
> t =3D 0
> while t =3D 0 do
d =3D date() <-- add this line
> t =3D d[5] =3D 20 -- otherwise, d[5] is always what you had read in=
to it
before the loop
> end while
> system("c:\\cdp\\cdp.exe 2", 0)
>
Thanks, C. K. I got it working. Now I have a mini-alarm clock. For my
use, I won't bind it because I can just hop in and change the A SINGLE LI=
NE
to reflect the time and another (maybe) to change the track. Then, I can=
leave the computer on and wake up with my favorite CD. (Of course, I can=
't
distribute it because I launch the CD externally, but its good enough for=
me right now).
I should have seen the illogic in my buggy program, but I was rushing. =
That's not something a relatively new programmer should do. But this
brings up a good point. I wrote that code, buggy as it was, in less than=
five minutes. Euphoria is fast to write in! I can't even do my homework=
that fast!
Lastly, as a conceptual issue (explaining how would be way over my head
right now), but can I use Euphoria to write TSRs?
Thanks again.
--Alan
=
8. Re: Playing CDs with Euphoria
Alan Tu wrote:
<snip>
>
> Lastly, as a conceptual issue (explaining how would be way over my head
> right now), but can I use Euphoria to write TSRs?
>
> Thanks again.
>
> --Alan
>
not entirely, the tsr itself has to be compiled to machine code.
however the code for the routine could be in a sequence thats poked to
memory by euphoria witch could then launch it.
unless of course theres a way to set ex.exe itslef up as a tsr
(with the prog bound into it.), but thats really reaching I think.
Kasey
9. Re: Playing CDs with Euphoria
>> Lastly, as a conceptual issue (explaining how would be way over my head
>> right now), but can I use Euphoria to write TSRs?
>>
>> Thanks again.
>>
>> --Alan
>>
>
>
> not entirely, the tsr itself has to be compiled to machine code.
>however the code for the routine could be in a sequence thats poked to
>memory by euphoria witch could then launch it.
> unless of course theres a way to set ex.exe itslef up as a tsr
>(with the prog bound into it.), but thats really reaching I think.
Euphoria interpreter (ex.exe, exw.exe) can't be launched as a TSR. If you
need a TSR it doesn't matter if you poke it into memory... it'll never stay
resident after Euphoria terminates. Read the documentation, there it says
that if there's any allocate()-ed memory when your program ends, Euphoria
will free() it automatically, thus terminating the illusion. If you use
exw.exe (under win32) maybe there's a chance you can make something: leave
your Euphoria program running on one shell box (pseudo-TSR). I don't know
how you can interact with other shell boxes... but take a try, maybe it
works!
Regards,
Daniel Berstein
daber at pair.com
