/*
 * Copyright 2000 Corel Corporation
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _TWAIN32_H
#define _TWAIN32_H

#ifndef __WINE_CONFIG_H
# error You must include config.h first
#endif

#ifdef HAVE_SANE
# include <sane/sane.h>
#endif
#include <stdarg.h>

#include "windef.h"
#include "winbase.h"
#include "twain.h"

extern HINSTANCE SANE_instance;

/* internal information about an active data source */
struct tagActiveDS
{
    struct tagActiveDS	*next;			/* next active DS */
    TW_IDENTITY		identity;		/* identity */
    TW_UINT16		currentState;		/* current state */
    TW_EVENT		pendingEvent;		/* pending event to be sent to
                                                   application */
    TW_UINT16		twCC;			/* condition code */
    HWND		hwndOwner;		/* window handle of the app */
    HWND		progressWnd;		/* window handle of the scanning window */
#ifdef HAVE_SANE
    SANE_Handle		deviceHandle;		/* device handle */
    SANE_Parameters     sane_param;             /* parameters about the image
                                                   transferred */
    BOOL                sane_param_valid;  /* true if valid sane_param*/
    INT                 deviceIndex;    /* index of the current device */
#endif
    /* Capabiblities */
    TW_UINT16		capXferMech;		/* ICAP_XFERMECH */
} activeDS;

/* Helper functions */
extern TW_UINT16 SANE_SaneCapability (pTW_CAPABILITY pCapability, TW_UINT16 action);

/*  */
extern TW_UINT16 SANE_ControlGroupHandler (
	pTW_IDENTITY pOrigin, TW_UINT16 DAT, TW_UINT16 MSG, TW_MEMREF pData);
extern TW_UINT16 SANE_ImageGroupHandler (
	pTW_IDENTITY pOrigin, TW_UINT16 DAT, TW_UINT16 MSG, TW_MEMREF pData);
extern TW_UINT16 SANE_AudioGroupHandler (
	pTW_IDENTITY pOrigin, TW_UINT16 DAT, TW_UINT16 MSG, TW_MEMREF pData);
extern TW_UINT16 SANE_SourceManagerHandler (
	pTW_IDENTITY pOrigin, TW_UINT16 DAT, TW_UINT16 MSG, TW_MEMREF pData);

/* Implementation of operation triplets
 * From Application to Source (Control Information) */
TW_UINT16 SANE_CapabilityGet (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_CapabilityGetCurrent
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_CapabilityGetDefault
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_CapabilityQuerySupport
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_CapabilityReset
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_CapabilitySet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_CustomDSDataGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_CustomDSDataSet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_AutomaticCaptureDirectory
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ChangeDirectory
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_FileSystemCopy
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_CreateDirectory
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_FileSystemDelete
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_FormatMedia
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_FileSystemGetClose
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_FileSystemGetFirstFile
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_FileSystemGetInfo
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_FileSystemGetNextFile
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_FileSystemRename
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ProcessEvent
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_PassThrough
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_PendingXfersEndXfer
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_PendingXfersGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_PendingXfersReset
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_PendingXfersStopFeeder
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_SetupFileXferGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_SetupFileXferGetDefault
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_SetupFileXferReset
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_SetupFileXferSet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_SetupFileXfer2Get
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_SetupFileXfer2GetDefault
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_SetupFileXfer2Reset
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_SetupFileXfer2Set
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_SetupMemXferGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_GetDSStatus
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_DisableDSUserInterface
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_EnableDSUserInterface
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_EnableDSUIOnly
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_XferGroupGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_XferGroupSet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);

/* Implementation of operation triplets
 * From Application to Source (Image Information) */
TW_UINT16 SANE_CIEColorGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ExtImageInfoGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_GrayResponseReset
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_GrayResponseSet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ImageFileXferGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ImageInfoGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ImageLayoutGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ImageLayoutGetDefault
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ImageLayoutReset
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ImageLayoutSet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ImageMemXferGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_ImageNativeXferGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_JPEGCompressionGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_JPEGCompressionGetDefault
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_JPEGCompressionReset
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_JPEGCompressionSet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_Palette8Get
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_Palette8GetDefault
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_Palette8Reset
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_Palette8Set
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_RGBResponseReset
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_RGBResponseSet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);

/* Implementation of operation triplets
 * From Application to Source (Audio Information) */
TW_UINT16 SANE_AudioFileXferGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_AudioInfoGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);
TW_UINT16 SANE_AudioNativeXferGet
    (pTW_IDENTITY pOrigin, TW_MEMREF pData);

/* Implementation of TWAIN capabilities */
TW_UINT16 SANE_ICAPXferMech (pTW_CAPABILITY pCapability, TW_UINT16 action);

/* UI function */
BOOL DoScannerUI(void);
HWND ScanningDialogBox(HWND dialog, LONG progress);

#endif