Copy my own class (i.e., object) to clipboard?

I'm working on a image viewer/tool for 3D image stacks, imtool3D. Its built using MATLAB's object oriented programing features. I've written some ROI (region of interest) classes that are used to make measurements on the image. I'm trying to figure out a way to implement copy and paste for these ROI objects (i.e., if I have two imtool3D figures open, I want to copy an ROI from one and paste it to the other). Anyone ever done something like this? I'm not sure how I can send my object to the clipboard, or how I can access the clipboard to paste it. Any info would be much appreciated!

[per isakson]

See General-use object copy at Undocumented Matlab

[Justin Solomon]

Thanks @per isakson. I actually don't have a problem making a copy of the object (within a function or script). But that copy inherently lives in the MATLAB workspace corresponding to the scope of the function/script that makes the copy. I was thinking it would be nice to somehow send that ROI object to the clipboard and then paste it onto a new imtool3D object. I suppose I could accomplish this by saving the object handle to a variable in the the base workspace, and then have the target imtool3D object only give you the option to paste if a variable with a predefined name exists in the base workspace. This method doesn't seem very elegant to me though.

[per isakson]

I thought "Which leads us to today’s chosen solution, where we use Matlab’s builtin functions getByteStreamFromArray and getArrayFromByteStream," might be a way to copy&paste an object.

[Justin Solomon]

Ahh. I see where you're going with that. I think I can get that to work. Basically I'll convert my object to a byte stream, copy that to the clipboard. In the past method, save the clipboard to a str variable, convert it to an array, then change it back to an object. Thanks again!