Added AppTraits for starting/ending a thread.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@23790 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/os2/utils.cpp

@@ -342,6 +342,15 @@ void wxBell()
     DosBeep(1000,1000); // 1kHz during 1 sec.
 }
 
+
+void wxAppTraits::InitializeGui(unsigned long &ulHab)
+{
+}
+
+void wxAppTraits::TerminateGui(unsigned long ulHab)
+{
+}
+
 wxToolkitInfo & wxConsoleAppTraits::GetToolkitInfo()
 {
     static wxToolkitInfo	    vInfo;