private void UnitializeImageSource()
		{
			_d3D11Image.IsFrontBufferAvailableChanged -= OnIsFrontBufferAvailableChanged;
			Source = null;

			if (_d3D11Image != null)
			{
				_d3D11Image.Dispose();
				_d3D11Image = null;
			}
			if (_renderTarget != null)
			{
				_renderTarget.Dispose();
				_renderTarget = null;
			}
		}
		private void InitializeImageSource()
		{
			_d3D11Image = new D3D11Image();
			_d3D11Image.IsFrontBufferAvailableChanged += OnIsFrontBufferAvailableChanged;
			CreateBackBuffer();
			Source = _d3D11Image;
		}