notify the event loop that synthesized events are on the queue, wait for them to be available, also on OSX a double click has to be synthesized slightly differently

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74163 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/uiactioncmn.cpp

@@ -25,6 +25,8 @@ bool wxUIActionSimulator::MouseClick(int button)
     return true;
 }
 
+#ifndef __WXOSX__
+
 bool wxUIActionSimulator::MouseDblClick(int button)
 {
     MouseDown(button);
@@ -35,6 +37,8 @@ bool wxUIActionSimulator::MouseDblClick(int button)
     return true;
 }
 
+#endif
+
 bool
 wxUIActionSimulator::MouseDragDrop(long x1, long y1, long x2, long y2,
                                    int button)