added wxEventLoop::GetActive()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11361 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/evtloop.cpp

@@ -62,6 +62,8 @@ private:
 // wxEventLoop running and exiting
 // ----------------------------------------------------------------------------
 
+wxEventLoop *wxEventLoop::ms_activeLoop = NULL;
+
 wxEventLoop::~wxEventLoop()
 {
     wxASSERT_MSG( !m_impl, _T("should have been deleted in Run()") );
@@ -77,6 +79,9 @@ int wxEventLoop::Run()
     // event loops are not recursive, you need to create another loop!
     wxCHECK_MSG( !IsRunning(), -1, _T("can't reenter a message loop") );
 
+    wxEventLoop *oldLoop = ms_activeLoop;
+    ms_activeLoop = this;
+
     m_impl = new wxEventLoopImpl;
 
     gtk_main();
@@ -85,6 +90,8 @@ int wxEventLoop::Run()
     delete m_impl;
     m_impl = NULL;
 
+    ms_activeLoop = oldLoop;
+
     return exitcode;
 }