xref: /aoo41x/main/sal/systools/win32/uwinapi/ResolveThunk.cpp (revision fc0bc008)

/**************************************************************
 *
 * 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
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 *************************************************************/



#include "macros.h"


EXTERN_C void WINAPI ResolveThunk_WINDOWS( FARPROC *lppfn, LPCSTR lpLibFileName, LPCSTR lpFuncName, FARPROC lpfnEmulate, FARPROC lpfnFailure )
{
	FARPROC	lpfnResult = (LONG)GetVersion() < 0 ? lpfnEmulate : GetProcAddress( LoadLibraryA( lpLibFileName ), lpFuncName );

	if ( !lpfnResult )
		lpfnResult = lpfnEmulate;

	if ( !lpfnResult )
		lpfnResult = lpfnFailure;

	*lppfn = lpfnResult;
}


EXTERN_C void WINAPI ResolveThunk_TRYLOAD( FARPROC *lppfn, LPCSTR lpLibFileName, LPCSTR lpFuncName, FARPROC lpfnEmulate, FARPROC lpfnFailure )
{
	FARPROC	lpfnResult = GetProcAddress( LoadLibraryA( lpLibFileName ), lpFuncName );

	if ( !lpfnResult )
		lpfnResult = lpfnEmulate;

	if ( !lpfnResult )
		lpfnResult = lpfnFailure;

	*lppfn = lpfnResult;
}


EXTERN_C void WINAPI ResolveThunk_ALLWAYS( FARPROC *lppfn, LPCSTR lpLibFileName, LPCSTR lpFuncName, FARPROC lpfnEmulate, FARPROC lpfnFailure )
{
	*lppfn = lpfnEmulate ? lpfnEmulate : lpfnFailure;
}