MATLAB: How to update a “child” figure

Question

I have a manually generated gui which consists of a parent figure with a number of child figures laid out on uipanels.

If I click something in one of the child figure I can cause something to happen in the parent figure using a figure handle passed to the child figure as an argument when I call the function that creates it.

Is there are way of triggering in the other direction, i.e. once the child has been created, if I click something in the parent figure how do I cause something to happen in the child figure?

Answer 1

Save the handle to the child figure in appdata and set it as necessary:

setappdata(hParent,'hChild1',hChild);

On click:

hChild = getappdata(hParent,'hChild');
set(hChild,...)