public void Close() { Pause(); IsVisual = false; Width = Height = 0; PixelFormat = AVProQuickTimePlugin.PixelFormat.Unknown; IsPrepared = false; IsPaused = true; IsPlaying = false; PlayState = PlaybackState.Unknown; _lastFrameDrawn = 0xffffffff; if (_formatConverter != null) { _formatConverter.Reset(); } if (_movieMemoryHandle.IsAllocated) { _movieMemoryHandle.Free(); } _movieMemoryPtr = IntPtr.Zero; _movieMemoryLength = 0; if (_movieHandle >= 0) { AVProQuickTimePlugin.FreeInstanceHandle(_movieHandle); _movieHandle = -1; } }