reactos/include/dxsdk/ksguid.h

#define INITGUID
#include <guiddef.h>

#ifndef STATICGUIDOF
  #define STATICGUIDOF(guid) STATIC_##guid
#endif

#if !defined( DEFINE_WAVEFORMATEX_GUID )
  #define DEFINE_WAVEFORMATEX_GUID(x) (USHORT)(x), 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
#endif

#if defined( DEFINE_GUIDEX )
  #undef DEFINE_GUIDEX
  #define DEFINE_GUIDEX(name) EXTERN_C const CDECL GUID __declspec(selectany) name = { STATICGUIDOF(name) }
#else
  #define DEFINE_GUIDEX(name) EXTERN_C const CDECL GUID __declspec(selectany) name = { STATICGUIDOF(name) }
#endif