MediaPlayerEventManager

The MediaPlayerEventManager seems to cause NullReferenceException as the GarbageCollector destroys the delegates. Couldn't find out why this is happening: 'CallbackOnCollectedDelegate': "LibVLCSharp!LibVLCSharp.Shared.EventCallback::Invoke"

Unfortunately i don't have the exception in english.

Hi @Ch4rg3r,

Which event?

Can you provide me with a sample code so I can reproduce this?

Hi, for me it happens often. I cannot say if it's a failure in my program.

`player = control.MediaPlayer;

player.EventManager.Playing += (sender, args) => {

};`

The player is inside an UI class (control). However i try to use the eventmanager, at one point debugging crashes. I guess this is the most simple implementation i tested so far. Same result

The program is not Xamarin.Forms, i use Eto and implement VLC inside WindowsFormsHost using Hwnd to attach it. Without EventManager it works. Unfortunatly i need events to get the videosize on playing to resize the host window.source.zip

closed via commit 9758d7eb

Thanks for the sample code, that was helpful.

Please try with https://www.nuget.org/packages/LibVLCSharp/0.0.1-alpha3 and let me know if that works for you.

You should be able to access Hwnd from the MediaPlayer now in your WPF project so no need to P/Invoke into it.

Not sure why you use SetDirectory as Core.Initialize() should just find the dll on its own? Let me know if that was an issue too.

Looking forward to your feedback.

Hi, thank you very much. Your fix works perfectly. I tested it. SetDirectory seems to work, somehow it didn't work before. Hwnd is availible too now.

Your fix works perfectly. I tested it.

Good to know.

SetDirectory seems to work, somehow it didn't work before.

My point is you should only need to call Core.Initialize() and let the wrapper figure out how to find and load the dlls. If you need to perform additional pinvoke statements for it to work, something is broken. I'll have a look later.

Also, Eto is not one of the currently supported UI frameworks but if you want to make a basic control and integration for it on a few platforms, feel free to do so. PRs welcome :)

Yeah Core.Initialize works, it was my mistake. I need to change a lot for a PR as it's really messy right now. For Eto and Wpf it uses the same way. Autoresizing doesn't work using Hwnd but i figured out how to solve this. Once i implemented most features i will make UserControls for Wpf and Eto.Forms

mentioned in issue #240 (closed)

mentioned in issue #567 (closed)