-// determine whether there is native wxComboControl, so make sure you
-// use it in all native wxComboControls.
+// determine whether there is native wxComboCtrl, so make sure you
+// use it in all native wxComboCtrls.
+
+#if wxUSE_COMBOCTRL
+
+#if !defined(__WXWINCE__) && wxUSE_TIMER
+ #include "wx/timer.h"
+ #define wxUSE_COMBOCTRL_POPUP_ANIMATION 1
+#else
+ #define wxUSE_COMBOCTRL_POPUP_ANIMATION 0
+#endif