Make Univ/GTK compile again

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15247 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/window.cpp

@@ -3263,7 +3263,7 @@ void wxWindowGTK::SetFocus()
         }
     }
 
-    (void)DoSendFocusEvents(this);
+    (void)DoSendFocusEvents((wxWindow*)this);
 }
 
 bool wxWindowGTK::AcceptsFocus() const
@@ -3485,7 +3485,7 @@ void wxWindowGTK::GtkSendPaintEvents()
         while (parent && !parent->IsTopLevel())
             parent = parent->GetParent();
         if (!parent)
-            parent = this;
+            parent = (wxWindow*)this;
     
         wxRegionIterator upd( m_updateRegion );
         while (upd)