Change in wxWindow the access specifier of the wxEvtHandler event processing and queuing functions

from public to protected. Adapt wxWidgets code and wxWidgets samples to always use wxWindow::GetEventHandler()
when calling such functions on a wxWindow rather than directly using wxWindow::ProcessEvent, etc.
This enables correct event dispatching to the event handlers which have been pushed (with PushEventHandler) on the 
windows.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58381 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/except/except.cpp

@@ -123,6 +123,8 @@ public:
     void OnHandleCrash(wxCommandEvent& event);
 #endif
 
+protected:
+
     // 1st-level exception handling: we overload ProcessEvent() to be able to
     // catch exceptions which occur in MyFrame methods here
     virtual bool ProcessEvent(wxEvent& event);