Question

I get the "cross-thread operation not valid" here:

if ( vlc.State == VlcPlayerControlState.PLAYING )
        {
            if ( vlc.InvokeRequired )
            {
                vlc.Invoke( new MediaPlayerNoParameterDelegate( vlc.Stop ) );
            }
            else
            {
                vlc.Stop(); // debugger points here
            }
        }

Debugging shows me that vlc doesn t require invoking. but the thread from which this is accessed is different from the thread it was created on.

I m using the libvlc.net wrapper to play sound, but the problem should not be there. How can I get rid of this exception?

I m using threading not backgroundworker.

Thank you!

Answer 1

It sounds like this is a bug in the libvlc.net wrappers.

My suggestion would be to just always call vlc.Invoke(...). You ll suffer a (small) performance hit when the invoke is truly not required, but if you re doing this from a separate thread, it will always be required anyways.

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