Passing data from GUI to GUI (without using workspace)

Hello!

I am trying to create a GUI for my thesis. Therefore i am proceeding from screen to screen. I click a button and i want an new screen to arise and the old one to close. This works so far. I am calling the new GUI like a function and delete the old one.

failureType(); delete(startScreen);

But i need the data from the old GUI in the new GUI. Is there an easy way to pass the data when calling the new GUI, without using the workspace? Because maybe the GUI should be compiled to an executable and i am not sure if this works when using workspace. Or is it easy to create an executable of the GUIs while using the workspace? Would be really nice if someone could give me an advice. I have not found an answer to my specific question here yet. Thanks!