Need to launch event after form load

[Ronald S. Cook]

In my Win app, I'm needing to load a media file into my Windows Media Player
control, and THEN read an attribute from the file.

The thing is, the file has to be playing for a split second before the
attribute can be read.

I can have wmpPlayer.URL = @"D:\Web\FWT\Te stFile.wma"; in my form load event
and then a button on the form to get the value I need...

label1.Text = wmpPlayer.curre ntMedia.getItem Info("Abstract" );

But I don't want to have to manually click a button. I want the form to
load, start playing the file, and then somehow trigger an event to go and
get the attribute.

Thanks for any help.
Ron

[pigeonrandle]

Hi,
You could use a timer and then have the Tick event update the label
after a second or so.

HTH,
James.

Ronald S. Cook wrote:

In my Win app, I'm needing to load a media file into my Windows Media Player
control, and THEN read an attribute from the file.

The thing is, the file has to be playing for a split second before the
attribute can be read.

I can have wmpPlayer.URL = @"D:\Web\FWT\Te stFile.wma"; in my form load event
and then a button on the form to get the value I need...

label1.Text = wmpPlayer.curre ntMedia.getItem Info("Abstract" );

But I don't want to have to manually click a button. I want the form to
load, start playing the file, and then somehow trigger an event to go and
get the attribute.

Thanks for any help.
Ron

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

"Ronald S. Cook" <rc***@westinis .comwrote in message
news:%2******** ********@TK2MSF TNGP06.phx.gbl. ..

| But I don't want to have to manually click a button. I want the form to
| load, start playing the file, and then somehow trigger an event to go and
| get the attribute.

A timer?
--
Ignacio Machin
machin AT laceupsolutions com

[Dave Sexton]

Hi Ron,

After you start the player, try calling System.Threadin g.Thread.Sleep( 500),
but with the desired wait time in milliseconds (my example is 1/2 second).
Then you can retrieve the attribute.

If the player is running on the executing thread than you'll have to wait
asynchronously. Maybe a bit convoluted, but here's one solution:

// 2.0 framework syntax

System.Threadin g.Synchronizati onContext context =
System.Threadin g.Synchronizati onContext.Curre nt;

MethodInvoker invoker = new MethodInvoker(d elegate()
{
// this code will run asynchronously
System.Threadin g.Thread.Sleep( 500);

context.Send(de legate(object state)
{
// this code will run on the main UI thread
// TODO: retrieve value
}, null);
});

// TODO: start player

invoker.BeginIn voke(delegate(I AsyncResult result)
{
invoker.EndInvo ke(result);
}, null);
--
Dave Sexton
http://davesexton.com/blog
http://www.codeplex.com/DocProject (Sandcastle in VS IDE)

"Ronald S. Cook" <rc***@westinis .comwrote in message
news:%2******** ********@TK2MSF TNGP06.phx.gbl. ..

In my Win app, I'm needing to load a media file into my Windows Media
Player control, and THEN read an attribute from the file.

The thing is, the file has to be playing for a split second before the
attribute can be read.

I can have wmpPlayer.URL = @"D:\Web\FWT\Te stFile.wma"; in my form load
event and then a button on the form to get the value I need...

label1.Text = wmpPlayer.curre ntMedia.getItem Info("Abstract" );

But I don't want to have to manually click a button. I want the form to
load, start playing the file, and then somehow trigger an event to go and
get the attribute.

Thanks for any help.
Ron