added support for broadcasting to UDP sockets (patch 1740266)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47126 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/gsockmsw.h

@@ -63,6 +63,8 @@ public:
   GSocketError SetServer();
   GSocket *WaitConnection();
   bool SetReusable();
+  bool SetBroadcast();
+  bool DontDoBind();
   GSocketError Connect(GSocketStream stream);
   GSocketError SetNonOriented();
   int Read(char *buffer, int size);
@@ -101,6 +103,8 @@ public:
   bool m_stream;
   bool m_establishing;
   bool m_reusable;
+  bool m_broadcast;
+  bool m_dobind;
   struct timeval m_timeout;
 
   /* Callbacks */