implement the wxGTK selective yield with a different approach: rather than getting the events ourselves and fetching them to gtk_main_do_event(), install our own wxgtk_main_do_event() to filter them (closes #10320 -- see bug reported in comment 19)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59541 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/evtloop.h

@@ -15,6 +15,8 @@
 // wxGUIEventLoop for wxGTK
 // ----------------------------------------------------------------------------
 
+typedef union  _GdkEvent        GdkEvent;
+
 class WXDLLIMPEXP_CORE wxGUIEventLoop : public wxEventLoopBase
 {
 public:
@@ -28,6 +30,9 @@ public:
     virtual void WakeUp();
     virtual bool YieldFor(long eventsToProcess);
 
+    void StoreGdkEventForLaterProcessing(GdkEvent* ev)
+        { m_arrGdkEvents.Add(ev); }
+    
 protected:
 
     // the exit code of this event loop