1. added wxEvtHandler::SafelyProcessEvent() and wxWindow::HandleWindowEvent() to correctly handle exceptions in even handlers in wxGTK

2. use HandleWindowEvent() everywhere as more obvious and convenient shortcut for GetEventHandler()->ProcessEvent(); also for consistency with wxGTK where it's required

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50329 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/event.h

@@ -2363,6 +2363,12 @@ public:
     // process an event right now
     virtual bool ProcessEvent(wxEvent& event);
 
+    // Process an event by calling ProcessEvent and handling any exceptions
+    // thrown by event handlers. It's mostly useful when processing wx events
+    // when called from C code (e.g. in GTK+ callback) when the exception
+    // wouldn't correctly propagate to wxEventLoop.
+    bool SafelyProcessEvent(wxEvent& event);
+
     // add an event to be processed later
     virtual void AddPendingEvent(const wxEvent& event);