text: // IDecl.h
  
  #ifndef __IDECL_H
  #define __IDECL_H
  
  #include "../Common/MyUnknown.h"
  
  #define DECL_INTERFACE_SUB(i, base, groupId, subId) \
  DEFINE_GUID(IID_ ## i, \
  0x23170F69, 0x40C1, 0x278A, 0, 0, 0, (groupId), 0, (subId), 0, 0); \
  struct i: public base
  
  #define DECL_INTERFACE(i, groupId, subId) DECL_INTERFACE_SUB(i, IUnknown, groupId, subId)
  
  #endif
  