implement event loop for console applications (heavily modified patch 1715735)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@46029 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/apptrait.h

@@ -18,6 +18,7 @@
 class WXDLLIMPEXP_BASE wxArrayString;
 class WXDLLIMPEXP_BASE wxObject;
 class WXDLLEXPORT wxAppTraits;
+class WXDLLIMPEXP_BASE wxEventLoop;
 #if wxUSE_FONTMAP
     class WXDLLEXPORT wxFontMapper;
 #endif // wxUSE_FONTMAP
@@ -120,6 +121,9 @@ public:
     virtual GSocketGUIFunctionsTable* GetSocketGUIFunctionsTable() = 0;
 #endif
 
+    // create a new, port specific, instance of the event loop used by wxApp
+    virtual wxEventLoop *CreateEventLoop() = 0;
+
 #if wxUSE_TIMER
     // return platform and toolkit dependent wxTimer implementation
     virtual wxTimerImpl *CreateTimerImpl(wxTimer *timer) = 0;