+#if defined(__WXMSW__)
+#define wxWindowNative wxWindowMSW
+#elif defined(__WXGTK__)
+#define wxWindowNative wxWindowGTK
+#elif defined(__WXMGL__)
+#define wxWindowNative wxWindowMGL
+#elif defined(__WXMAC__)
+#define wxWindowNative wxWindowMac
+#endif
+