Vista - MediaTimeline reports wrong timeline in Beta 2.

Hi All,

I try to display playback time for video file using MediaTimeLine, but in
Beta 2 when
CurrentTimeInvalidated occured, the CurrentTime for mediaClock always will
be zero(00:00), is this a Beta 2 bug or the way I use MediaTimeLine is wrong?
The following code shows how I use MediaTImeLine:

mediaTimeLine = new MediaTimeline(new Uri(filePath,
UriKind.RelativeOrAbsolute));
mediaClock = this.mediaTimeLine.CreateClock();
mediaClock.CurrentTimeInvalidated += new
EventHandler(ClipCurrentTimeInvalidated);

and the following code shows how I handle CurrentTimeInvalidated:

void ClipCurrentTimeInvalidated(object sender, EventArgs e)
{
string ct = this.mediaClock.CurrentTime.ToString();

// Display current time.
}

and the string "ct" always is 00:00. Does any one know what's going on?
Any comments are appreciated, thanks!

Horus.

You need to assign a MediaClock to either a MediaElement or a MediaPlayer's
Clock property in order to play media. It doesn't look like you are doing
that from the snippet below.

Thanks a lot,
Ed Maia
WPF PM

"Horus Liu" <Horus Liu@discussions.microsoft.com> wrote in message
news:FA02740C-6F29-40AF-AB79-0EF40E817C9C@microsoft.com...
> Hi All,
>
> I try to display playback time for video file using MediaTimeLine, but in
> Beta 2 when
> CurrentTimeInvalidated occured, the CurrentTime for mediaClock always will
> be zero(00:00), is this a Beta 2 bug or the way I use MediaTimeLine is
> wrong?
> The following code shows how I use MediaTImeLine:
>
> mediaTimeLine = new MediaTimeline(new Uri(filePath,
> UriKind.RelativeOrAbsolute));
> mediaClock = this.mediaTimeLine.CreateClock();
> mediaClock.CurrentTimeInvalidated += new
> EventHandler(ClipCurrentTimeInvalidated);
>
> and the following code shows how I handle CurrentTimeInvalidated:
>
> void ClipCurrentTimeInvalidated(object sender, EventArgs e)
> {
> string ct = this.mediaClock.CurrentTime.ToString();
>
> // Display current time.
> }
>
> and the string "ct" always is 00:00. Does any one know what's going on?
> Any comments are appreciated, thanks!
>
> Horus.
>