diff options
Diffstat (limited to 'src/libs/7zip/win/CPP/Common/MyInitGuid.h')
| -rw-r--r-- | src/libs/7zip/win/CPP/Common/MyInitGuid.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/libs/7zip/win/CPP/Common/MyInitGuid.h b/src/libs/7zip/win/CPP/Common/MyInitGuid.h index d6a486980..279fba5d6 100644 --- a/src/libs/7zip/win/CPP/Common/MyInitGuid.h +++ b/src/libs/7zip/win/CPP/Common/MyInitGuid.h @@ -3,20 +3,43 @@ #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 |