Thanks Shaarigan. I put the DispatcherTimer back on the UI thread, but had to set its priority to Render, otherwise it wasn't being called (the screen render seemed to take up all the time…)

if you are 100% sure that your parameters are correct then it could be that the feature you are trying to use isn't supported by your hardware;

if your parameters are not correct, weeeell… you need to fix them, i'm not sure your post has enough info to help…

all the best ?

You already have an option in your Visual Studio project config to add a certificate to sign your .NET application. Just head to the project settings of your WPF application and visit the Signing tab to either create a self-signed application or add an existing certificate file to it.

Rebuild, zip i…

I don’t know which version of D3DVideoSink you were using, but my understanding is that at it’s core it is using this dynamic texture method.  I.e. create texture at initialisation and then after each arrival of a decoded video frame, map (lock), copy video frame, unmap (unlock) and render

As D…