-// macros for handling spin events
-#ifndef EVT_SPIN_UP
-#define EVT_SPIN_UP(id, func) { wxEVT_SCROLL_LINEUP, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxSpinEventFunction) & func },
-#endif
-#ifndef EVT_SPIN_DOWN
-#define EVT_SPIN_DOWN(id, func) { wxEVT_SCROLL_LINEDOWN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxSpinEventFunction) & func },
-#endif
-#ifndef EVT_SPIN
-#define EVT_SPIN(id, func) { wxEVT_SCROLL_THUMBTRACK, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxSpinEventFunction) & func },
-#endif
+#define wxSpinEventHandler(func) \
+ wxEVENT_HANDLER_CAST(wxSpinEventFunction, func)
+
+// macros for handling spin events: notice that we must use the real values of
+// the event type constants and not their references (wxEVT_SPIN[_UP/DOWN])
+// here as otherwise the event tables could end up with non-initialized
+// (because of undefined initialization order of the globals defined in
+// different translation units) references in them
+#define EVT_SPIN_UP(winid, func) \
+ wx__DECLARE_EVT1(wxEVT_SPIN_UP, winid, wxSpinEventHandler(func))
+#define EVT_SPIN_DOWN(winid, func) \
+ wx__DECLARE_EVT1(wxEVT_SPIN_DOWN, winid, wxSpinEventHandler(func))
+#define EVT_SPIN(winid, func) \
+ wx__DECLARE_EVT1(wxEVT_SPIN, winid, wxSpinEventHandler(func))