🚀 go-pugleaf

"Jeff Douglass" <.> wrote in message
news:3e8894b1$1@newsgroups.borland.com...
> Here is the problem. Sometimes, due to the app doing something
> else like loading a form with data the trigger interval is inconsistant
> which results in the sound getting played with a second and a half
> interval followed by a half second interval.

TTimer uses the WM_TIMER message and as such is directly tied to the
application's message queue.  Anything that delays processing of messages is
going to effect the timer.

You don't need a timer at all, though.  PlaySound() supports looping sounds.
Simply pass the SND_ASYNC and SND_LOOP flags when calling PlaySound() the
first time, and then pass NULL as the pszSound parameter a second time to
stop the playing.  You don't need to keep calling PlaySound() repeatedly
over and over manually.


Gambit

Thanks, but the problem with the LOOP method is that the sound is
continuous. What I want is
BEEP 1 sec of no sound BEEP 1 sec of no sound ...........

Not a continuous BEEEEEEEEEEEEEEEEEEEEEP.

Make sense?

Thanks

The sound is not continous.  It is played over and over from start to end
each time.  If you're getting continuous sound, then your sound itself
doesn't have any pauses in it.  Try making a sound that has a 1 second pause
at the end.  The LOOP will do what you ask while still not requiring any
timer.

The alternative is as you already know - just make a separate thread, have
it call PlaySound() in a while(!Terminated) loop with the SYNC flag instead,
and then Sleep() for 1000 milliseconds between callings.  You don't need to
adjust the thread priority, though.


Gambit

"Jeff Douglass" <.> wrote in message
news:3e88a4af$1@newsgroups.borland.com...
> Thanks, but the problem with the LOOP method is that
> the sound is continuous. What I want is BEEP 1 sec of
> no sound BEEP 1 sec of no sound ...........
>
> Not a continuous BEEEEEEEEEEEEEEEEEEEEEP.

Thanks. Yea, I thought of the adding a pause to the actual sound file but
since the users can set their own sound I did not want them to have to deal
with this so I figured that the seperate thread idea was more robust.

Thanks again.

You could define a new constant such as SND_NODEFAULT_AND_SILENCE
whose value is not used by any of the existing constants (fdwSound)
and play your sound and then a Silence_1S.wav file which would be a silence
"sound". Then you could loop to get the BEEP-1S Silence- BEEP 1S
Silence -...

bool Play_Sound(LPCSTR FileName, DWORD PlayMode)
{
    switch(PlayMode)
    {
        case SND_APPLICATION:
             // The sound is played using an the sound associated with
             // the application.
             return PlaySound(FileName, NULL, SND_APPLICATION);

        case SND_SYNC:
             // Return after finishing playing the sound.
             return PlaySound(FileName, NULL, SND_SYNC);

        case SND_ASYNC:
             // Return immediately after beginning playing the sound.
             return PlaySound(FileName, NULL, SND_ASYNC);

        case SND_LOOP:
             // Play sound repeatedly.
             return PlaySound(FileName, NULL, SND_LOOP | SND_ASYNC);

        case SND_NODEFAULT:
             // If the sound cannot be found, PlaySound returns
             // without playing the default sound.
             return PlaySound(FileName, NULL, SND_NODEFAULT);

        case SND_NODEFAULT_AND_SILENCE:
             if (!PlaySound(FileName, NULL, SND_NODEFAULT))
                 return false;
                    // Play Silence_1S.wav Sound
             return Play_Sound("C:\\Directory\\Silence_1S.wav",
SND_NODEFAULT);

       default: // Error: Illegal Play Mode
             return false;
    }
}

Rodolfo

"Jeff Douglass" <.> wrote in message
news:3e8894b1$1@newsgroups.borland.com...
> I have a BCB 5 app that when a condition occures plays a .wav file every
> second to notify the user that the condition has occured.