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// Common/MyInitGuid.h↩
↩
#ifndef __COMMON_MY_INITGUID_H↩
#define __COMMON_MY_INITGUID_H↩
↩
/*↩
This file must be included only to one C++ file in project before↩
declarations of COM interfaces with DEFINE_GUID macro.↩
↩
Each GUID must be initialized exactly once in project.↩
There are two different versions of the DEFINE_GUID macro in guiddef.h (MyGuidDef.h):↩
- if INITGUID is not defined: DEFINE_GUID declares an external reference to the symbol name.↩
- if INITGUID is defined: DEFINE_GUID initializes the symbol name to the value of the GUID.↩
↩
Also we need IID_IUnknown that is initialized in some file for linking:↩
MSVC: by default the linker uses some lib file that contains IID_IUnknown↩
MinGW: add -luuid switch for linker↩
WinCE: we define IID_IUnknown in this file↩
Other: we define IID_IUnknown in this file↩
*/↩
↩
#ifdef _WIN32↩
↩
#ifdef UNDER_CE↩
#include <basetyps.h>↩
#endif↩
↩
#include <initguid.h>↩
↩
#ifdef UNDER_CE↩
DEFINE_GUID(IID_IUnknown,↩
0x00000000, 0x0000, 0x0000, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46);↩
#endif↩
↩
#else↩
↩
#define INITGUID↩
#include "MyGuidDef.h"↩
DEFINE_GUID(IID_IUnknown,↩
0x00000000, 0x0000, 0x0000, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46);↩
↩
#endif↩
↩
↩
#endif↩