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77 lines
2.0 KiB
C++
77 lines
2.0 KiB
C++
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/* mail news client wrapper */
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/*Dynamic Library wrapper for loading on call*/
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#include "stdafx.h"
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#include "mnrccln.h"
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#ifdef WIN32
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#define MAILNEWSDLL "MNRC32.DLL"
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#else
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#define MAILNEWSDLL "MNRC16.DLL"
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#endif
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HINSTANCE CMailNewsResourceDll::s_dllinstance=NULL;
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unsigned int CMailNewsResourceDll::s_refcount=0;
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CMailNewsResourceDll::CMailNewsResourceDll()
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{
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// Running under Win3.1, if the default drive is A or B and the disk
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// was removed, this tries to load from the default drive.
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// So change to C before loading. (A=1, B=2, C=3)
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if( _getdrive() < 3 ){
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_chdrive(3);
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}
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if (s_refcount)
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{
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s_dllinstance=LoadLibrary(MAILNEWSDLL);
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s_refcount++;
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return;
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}
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else
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{
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s_dllinstance=LoadLibrary(MAILNEWSDLL);
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XP_ASSERT(s_dllinstance);
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s_refcount++;
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if(!s_dllinstance)
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return;
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}
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}
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CMailNewsResourceDll::~CMailNewsResourceDll()
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{
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#ifdef WIN32
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if (!FreeLibrary(s_dllinstance))
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XP_ASSERT(0);
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#else
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FreeLibrary(s_dllinstance);
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#endif
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s_refcount--;
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}
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HINSTANCE
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CMailNewsResourceDll::switchResources()
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{
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XP_ASSERT(s_refcount);
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HINSTANCE t_hinstance=AfxGetResourceHandle();
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AfxSetResourceHandle(s_dllinstance);
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return t_hinstance;
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}
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