Unable to use UI Image with Graphics.FromImage

I have the following in the code

var g = Graphics.FromImage(destinationImage);

but get an error, cannot convert from GHIElectronics.TinyCLR.UI.Controls.Image to System.Graphics.Image

I need to be able to draw bitmaps on the Image.

I don’t see any error if:

var g = destinationImage.Source.graphics