1 files changed, 49 insertions, 0 deletions

diff --git a/CPP/Common/MyInitGuid.h b/CPP/Common/MyInitGuid.h
new file mode 100644
index 0000000..04d77e2
--- /dev/null
+++ b/CPP/Common/MyInitGuid.h
@@ -0,0 +1,49 @@
+// 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 __clang__
+  #pragma clang diagnostic ignored "-Wmissing-variable-declarations"
+#endif
+
+#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