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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef _TWAIN_HXX
#define _TWAIN_HXX

#include <osl/module.hxx>
#include <vcl/bitmap.hxx>
#include "twain/twain.h"


// -----------
// - Defines -
// -----------

#define TWAIN_SELECT			0x00000001UL
#define TWAIN_ACQUIRE			0x00000002UL
#define TWAIN_TERMINATE			0xFFFFFFFFUL

#define TWAIN_EVENT_NONE		0x00000000UL
#define TWAIN_EVENT_QUIT		0x00000001UL
#define TWAIN_EVENT_SCANNING	0x00000002UL
#define TWAIN_EVENT_XFER		0x00000004UL

// ------------
// - ImpTwain -
// ------------

class ImpTwain
{
    TW_IDENTITY					aAppIdent;
    TW_IDENTITY					aSrcIdent;
    Link						aNotifyLink;
    Bitmap						aBitmap;
    DSMENTRYPROC				pDSM;
    osl::Module                 pMod;
    sal_uLong						nCurState;

    void						ImplCreate();
    void						ImplOpenSourceManager();
    void						ImplOpenSource();
    sal_Bool						ImplEnableSource();
    void						ImplXfer();
    void						ImplFallback( sal_uLong nEvent );

                                DECL_LINK( ImplFallbackHdl, void* );
                                DECL_LINK( ImplDestroyHdl, void* );

public:

    sal_Bool						ImplHandleMsg( void* pMsg );

    HWND						hTwainWnd;
    HHOOK						hTwainHook;

public:

                                ImpTwain( const Link& rNotifyLink );
                                ~ImpTwain();

    void						Destroy();

    sal_Bool						SelectSource();
    sal_Bool						InitXfer();
    Bitmap						GetXferBitmap();
};

#endif // _TWAIN_HXX

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */