diff --git a/include/wx/window.h b/include/wx/window.h
index f6d7b332c2..bbcd44aa98 100644
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -1002,8 +1002,6 @@ inline wxWindow *wxWindowBase::GetGrandParent() const
 // global functions
 // ----------------------------------------------------------------------------
 
-WXDLLEXPORT extern wxWindow* wxGetActiveWindow();
-
 // Find the wxWindow at the current mouse position, also returning the mouse
 // position.
 WXDLLEXPORT extern wxWindow* wxFindWindowAtPointer(wxPoint& pt);
diff --git a/src/common/appcmn.cpp b/src/common/appcmn.cpp
index 761c50b9ff..0b7b957dc3 100644
--- a/src/common/appcmn.cpp
+++ b/src/common/appcmn.cpp
@@ -130,25 +130,9 @@ void wxAppBase::ProcessPendingEvents()
 
 #if wxUSE_GUI
 
-void wxAppBase::SetActive(bool active, wxWindow *lastFocus)
+void wxAppBase::SetActive(bool active, wxWindow * WXUNUSED(lastFocus))
 {
-    static wxWindow *s_lastFocus = (wxWindow *)NULL;
-
     m_isActive = active;
-
-    // if we're being deactivated remember the last focused window
-    if ( !active )
-    {
-        s_lastFocus = lastFocus;
-    }
-
-    if ( s_lastFocus )
-    {
-        // give the focused window the chance to refresh itself if its
-        // appearance depends on the app activation state
-        wxActivateEvent event(wxEVT_ACTIVATE, active);
-        s_lastFocus->GetEventHandler()->ProcessEvent(event);
-    }
 }
 
 #endif // wxUSE_GUI