+#ifdef __WXUNIVERSAL__
+ #define USE_WXUNIVERSAL 1
+#else
+ #define USE_WXUNIVERSAL 0
+#endif
+
+#if defined(__WXMSW__) && !defined(__WXWINCE__)
+ #define USE_WXMSW 1
+#else
+ #define USE_WXMSW 0
+#endif
+
+#ifdef __WXMAC__
+ #define USE_WXMAC 1
+#else
+ #define USE_WXMAC 0
+#endif
+
+#ifdef __WXGTK__
+ #define USE_WXGTK 1
+#else
+ #define USE_WXGTK 0
+#endif
+
+#ifdef __WXPM__
+ #define USE_WXPM 1
+#else
+ #define USE_WXPM 0
+#endif
+
+#define USE_COLOURDLG_GENERIC \
+ ( \
+ wxUSE_COLOURDLG && \
+ ( USE_WXMSW || USE_WXMAC ) && \
+ !USE_WXUNIVERSAL \
+ )
+
+
+#define USE_DIRDLG_GENERIC \
+ ( \
+ wxUSE_DIRDLG && \
+ ( USE_WXMSW || USE_WXMAC ) && \
+ !USE_WXUNIVERSAL \
+ )
+
+#define USE_FILEDLG_GENERIC \
+ ( \
+ wxUSE_FILEDLG && \
+ ( USE_WXMSW || USE_WXMAC || USE_WXPM ) && \
+ !USE_WXUNIVERSAL \
+ )
+
+#define USE_FONTDLG_GENERIC \
+ ( \
+ wxUSE_FONTDLG && \
+ ( USE_WXMSW || USE_WXPM ) && \
+ !USE_WXUNIVERSAL \
+ )
+
+
+#define USE_MODAL_PRESENTATION \
+ ( \
+ USE_WXMSW || \
+ USE_WXMAC || \
+ USE_WXGTK || \
+ USE_WXPM \
+ )
+