text: // Common/MyGuidDef.h
  
  #ifndef GUID_DEFINED
  #define GUID_DEFINED
  
  #include "MyTypes.h"
  
  typedef struct {
    UInt32 Data1;
    UInt16 Data2;
    UInt16 Data3;
    unsigned char Data4[8];
  } GUID;
  
  #ifdef __cplusplus
  #define REFGUID const GUID &
  #else
  #define REFGUID const GUID *
  #endif
  
  #define REFCLSID REFGUID
  #define REFIID REFGUID
  
  #ifdef __cplusplus
  inline int operator==(REFGUID g1, REFGUID g2)
  {
    for (int i = 0; i < (int)sizeof(g1); i++)
      if (((unsigned char *)&g1)[i] != ((unsigned char *)&g2)[i])
        return 0;
    return 1;
  }
  inline int operator!=(REFGUID g1, REFGUID g2) { return !(g1 == g2); }
  #endif
  
  #ifdef __cplusplus
    #define MY_EXTERN_C extern "C"
  #else
    #define MY_EXTERN_C extern
  #endif
  
  #endif
  
  
  #ifdef DEFINE_GUID
  #undef DEFINE_GUID
  #endif
  
  #ifdef INITGUID
    #define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
      MY_EXTERN_C const GUID name = { l, w1, w2, { b1, b2, b3, b4, b5, b6, b7, b8 } }
  #else
    #define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
      MY_EXTERN_C const GUID name
  #endif
  