I am using wxWidgets for an application that I am trying to make, now everything in this code technically works, the image displays as intended:

I am writing a code for a GUI in c++ using wxwidgets. In the GUI I have an input panel that recieves information from the user, and an output panel that displays the results of a numeric simulation based on the received data. How can I transfer information from the input panel to the output panel? Is it possible to have a global structure that belongs to the parent wxwindow, or better yet, to wxapp, such that all children windows and panels have read and write access to this structure?
(looking online, it seems wxclientdata might fit what I’m looking for, but I can’t figure out how to use it in the way I described above, or whether it is at all possible).

I have a simple custom control consisting of wxStaticText and wxTextCtrl in one sizer.