// this defines a CASTWNDPROC macro which casts a pointer to the type of a
// window proc
-#if defined(__GNUWIN32__) && !defined(wxUSE_NORLANDER_HEADERS)
+#ifdef __GNUWIN32_OLD__
# define CASTWNDPROC (long unsigned)
#else
# ifdef __BORLANDC__
# ifdef __WIN32__
+#if __BORLANDC__ > 0x530
+ typedef long (__stdcall * WndProcCast)( HWND__*, unsigned int, unsigned int, long) ;
+#else
typedef int (pascal * WndProcCast) ();
+#endif
# define CASTWNDPROC (WndProcCast)
-// # define CASTWNDPROC
# else
typedef int (pascal * WndProcCast) ();
# define CASTWNDPROC (WndProcCast)