Warning fixes found under hardest mode of OpenWatcom. Seems clean in Borland, MinGW and DMC.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29660 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

demos/life/life.cpp

@@ -1025,7 +1025,7 @@ void LifeCanvas::OnSize(wxSizeEvent& event)
 
 void LifeCanvas::OnScroll(wxScrollWinEvent& event)
 {
-    WXTYPE type = event.GetEventType();
+    WXTYPE type = (WXTYPE)event.GetEventType();
     int pos     = event.GetPosition();
     int orient  = event.GetOrientation();