/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_extensions.hxx"
#if defined _MSC_VER && ( _MSC_VER >= 1200 )
#define _WIN32_WINNT  0x0400
#endif

#include "ole2uno.hxx"

#include <tools/presys.h>
#include <tools/postsys.h>

#include <vos/thread.hxx>

using namespace vos;
using namespace std;

namespace ole_adapter
{
// CoInitializeEx *
typedef DECLSPEC_IMPORT HRESULT (STDAPICALLTYPE *ptrCoInitEx)( LPVOID, DWORD); 
// CoInitialize *
typedef DECLSPEC_IMPORT HRESULT (STDAPICALLTYPE *ptrCoInit)( LPVOID); 

void o2u_attachCurrentThread()
{
	static OThreadData oleThreadData;
	
    if ((sal_Bool)(sal_IntPtr)oleThreadData.getData() != sal_True)
	{
		HINSTANCE inst=	LoadLibrary( _T("ole32.dll"));
		if( inst )
		{
			HRESULT hr;
			// Try DCOM
			ptrCoInitEx initFuncEx= (ptrCoInitEx)GetProcAddress( inst, _T("CoInitializeEx"));
			if( initFuncEx)
				hr= initFuncEx( NULL, COINIT_MULTITHREADED);
			// No DCOM, try COM
			else
			{
				ptrCoInit initFunc= (ptrCoInit)GetProcAddress( inst,_T("CoInitialize"));
				if( initFunc)
					hr= initFunc( NULL);
			}
		}
		oleThreadData.setData((void*)sal_True);				
	}
}	

} // end namespace