+// types DWORD_PTR, ULONG_PTR and so on might be not defined in old headers but
+// unfortunately I don't know of any standard way to test for this (as they're
+// typedefs and not #defines), so simply overwrite them in any case in Win32
+// mode -- and if compiling for Win64 they'd better have new headers anyhow
+//
+// this is ugly but what else can we do? even testing for compiler version
+// wouldn't help as you can perfectly well be using an older compiler (VC6)
+// with newer SDK headers
+#if !defined(__WIN64__) && !defined(__WXWINCE__)
+ #define UINT_PTR unsigned int
+ #define ULONG_PTR unsigned long
+ #define DWORD_PTR unsigned long
+#endif // !__WIN64__
+