Hi,

I am about to start a new app, and would like to improve my programming style. 
I have been using global variables to pass data from "popup" windows back to a 
main window. I have seen discussion about using g_object_set_data, but have not 
progressed to being able to use it confidently. 

Does anyone know of a simple example using g_object_set_data. The sort of thing 
I am thinking about is a main window with a label and button, that pops up a 
child window with an entry and a button. Clicking the child windows button 
returns the string in the entry back to the main windows label.

This sort of example would be very useful in the tutorial.

Thanks,
Kim
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