Accessing another element from custom wxPanel wxWidgets

Hello good people of stack overflow, I have run into a bit of a wall in creating an application. I am using custom wxPanels to display a few similar things.

What I'm having trouble doing is updating a master count when a counter in the panel is updated (the counters are wxSpinCtrl's) I can not, for the life of me, find a way to access the master spinctrl from any of the wxPanels.

I've tried passing a pointer to the master spinctrl, but when I try to access it开发者_如何学JAVA from there I get a seg fault. I've tried setting up a custom event, but I don't know how to access the children of a wxPanel from the main panel. Does anyone have any suggestions?

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You can do this several ways, but the usual way is to use an event that is triggered when the user changes the spin control value.

You do not need a custom event, the provided wxSpinEvent is fine.

You do not need to access the spinctontrol, you can get the new value from the event

void OnSpin( wxSpinEvent& event )
{
  count = event.GetPosition();
}