Add a combaseapi.h header for Windows 8 COM functions

git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@5864 4407c894-4637-0410-b4f5-ada5f102cad1

mingw-w64-headers/include/combaseapi.h

diff --git a/mingw-w64-headers/include/combaseapi.h b/mingw-w64-headers/include/combaseapi.h
new file mode 100644
index 0000000..4802970
--- /dev/null
+++ b/mingw-w64-headers/include/combaseapi.h
@@ -0,0 +1,28 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the mingw-w64 runtime package.
+ * No warranty is given; refer to the file DISCLAIMER.PD within this package.
+ */
+#include <rpc.h>
+#include <rpcndr.h>
+
+#ifndef _COMBASEAPI_H_
+#define _COMBASEAPI_H_
+
+#include <pshpack8.h>
+
+#include <wtypes.h>
+#include <unknwn.h>
+#include <objidl.h>
+#include <objbase.h>
+#include <guiddef.h>
+
+#ifndef INITGUID
+#include <cguid.h>
+#endif
+
+#if (_WIN32_WINNT >= 0x0602)
+WINOLEAPI CoCreateInstanceFromApp(REFCLSID Clsid,IUnknown *punkOuter,DWORD dwClsCtx,void *reserved,DWORD dwCount,MULTI_QI *pResults);
+#endif /*(_WIN32_WINNT >= 0x0602)*/
+
+#endif