/*
 * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#ifndef _TWAIN32_H
#define _TWAIN32_H

#include <stdarg.h>

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

extern HINSTANCE SANE_instance DECLSPEC_HIDDEN;

#define TWCC_CHECKSTATUS     (TWCC_CUSTOMBASE + 1)

/* internal information about an active data source */
struct tagActiveDS
{
    TW_IDENTITY		identity;		/* identity of the DS */
    TW_UINT16		currentState;		/* current state */
    TW_UINT16		twCC;			/* condition code */
    TW_IDENTITY         appIdentity;            /* identity of the app */
    HWND		hwndOwner;		/* window handle of the app */
    HWND		progressWnd;		/* window handle of the scanning window */

    struct frame_parameters frame_params;       /* parameters about the image transferred */

    /* Capabilities */
    TW_UINT16		capXferMech;		/* ICAP_XFERMECH */
    BOOL                PixelTypeSet;
    TW_UINT16		defaultPixelType;		/* ICAP_PIXELTYPE */
    BOOL                XResolutionSet;
    TW_FIX32            defaultXResolution;
    BOOL                YResolutionSet;
    TW_FIX32            defaultYResolution;
};

extern struct tagActiveDS activeDS DECLSPEC_HIDDEN;

/* Helper functions */
extern TW_UINT16 SANE_SaneCapability (pTW_CAPABILITY pCapability, TW_UINT16 action) DECLSPEC_HIDDEN;
extern TW_UINT16 SANE_SaneSetDefaults (void) DECLSPEC_HIDDEN;
extern void SANE_Notify (TW_UINT16 message) DECLSPEC_HIDDEN;

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

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

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

/* Option functions */
TW_UINT16 sane_option_get_value( int optno, void *val ) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_set_value( int optno, void *val, BOOL *reload ) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_get_int( const char *option_name, int *val ) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_set_int( const char *option_name, int val, BOOL *reload ) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_get_str( const char *option_name, char *val, int len ) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_set_str( const char *option_name, char *val, BOOL *reload ) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_probe_resolution( const char *option_name, int *minval, int *maxval, int *quant) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_probe_mode(TW_UINT16 *current, TW_UINT32 *choices, int *count) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_get_bool( const char *option_name, BOOL *val ) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_set_bool( const char *option_name, BOOL val ) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_get_scan_area( int *tlx, int *tly, int *brx, int *bry ) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_get_max_scan_area( int *tlx, int *tly, int *brx, int *bry ) DECLSPEC_HIDDEN;
TW_UINT16 sane_option_set_scan_area( int tlx, int tly, int brx, int bry, BOOL *reload ) DECLSPEC_HIDDEN;
TW_FIX32 convert_sane_res_to_twain( int res ) DECLSPEC_HIDDEN;
TW_UINT16 get_sane_params( struct frame_parameters *params ) DECLSPEC_HIDDEN;

#endif