#pragma once

#ifndef __TTWAIN_H__

#define __TTWAIN_H__

#ifdef _WIN32

#include <windows.h></windows.h>

#else

#ifndef _UNIX_

#define _UNIX_

#endif

#endif

#include "twain.h"

#include "tnztypes.h"

#ifndef TRUE

#define TRUE 1

#endif

#ifndef FALSE

#define FALSE 0

#endif

#ifndef UCHAR

#define UCHAR unsigned char

#endif

#ifndef USHORT

#define USHORT unsigned short

#endif

#ifdef __cplusplus

extern "C" {

#endif

typedef enum TTWAIN_PIXTYPE {

	TTWAIN_BW,	/* 1-bit per pixel, B&W     */

	TTWAIN_WB,	/* 1-bit per pixel, W&B     */

	TTWAIN_GRAY8, /* 1,4, or 8-bit grayscale  */

	TTWAIN_RGB24, /* 24-bit RGB color         */

	TTWAIN_PIXTYPE_HOWMANY,

	TTWAIN_PIXUNKNOWN = -1,

} TTWAIN_PIXTYPE;

typedef enum TTWAIN_BITORDER {

	TTWAIN_LSBFIRST = TWBO_LSBFIRST,

	TTWAIN_MSBFIRST = TWBO_MSBFIRST

} TTWAIN_BITORDER;

typedef enum TWAINAVAILABLE {

	AVAIABLE_DONTKNOW = -1,

	AVAIABLE_YES,

	AVAIABLE_NO

} TWAINAVAILABLE;

typedef enum TTWAIN_TRANSFER_MECH {

	TTWAIN_TRANSFERMODE_NATIVE = TWSX_NATIVE,

	TTWAIN_TRANSFERMODE_MEMORY = TWSX_MEMORY,

	TTWAIN_TRANSFERMODE_FILE = TWSX_FILE

} TTWAIN_TRANSFER_MECH;

typedef enum TTWAIN_USAGE_MODE {

	TTWAIN_MODE_LEASHED,

	TTWAIN_MODE_UNLEASHED

} TTWAIN_USAGE_MODE;

/* application should return 0 to stop the scanning process, any other value elsewhere */

typedef int TTWAIN_ONDONE_CB(UCHAR *buffer, TTWAIN_PIXTYPE pixelType,

							 int lx, int ly, int wrap,

							 float xdpi, float ydpi,

							 void *usrData);

typedef void TTWAIN_ONERROR_CB(void *usrData, void *alwaysZero);

int TTWAIN_IsAvailable(void);

void TWAIN_RegisterApp(int majorNum, int minorNum, /* app. revision*/

					   int nLanguage,			   /* (human) language (use TWLG_xxx from TWAIN.H) */

					   int nCountry,			   /* country (use TWCY_xxx from TWAIN.H)	     */

					   char *version,			   /* version info string                          */

					   char *manufacter,		   /* name of manufacter			     */

					   char *family,			   /* product family				     */

					   char *product);			   /* specific product			     */

int TTWAIN_SelectImageSource(void *hwnd);

/*---------------------------------------------------------------------------*/

void *TTWAIN_AcquireNative(void *hwnd);

int TTWAIN_AcquireMemory(void *hwnd);

void TTWAIN_StopAcquire(void);

/*

nb. AcquireMemory returns: an upside-down bitmap :)

nb. AcquireNative returns: 

			  under Windows an HBITMAP

			  under Mac     a  PICT

*/

/*---------------------------------------------------------------------------*/

void TTWAIN_SetTwainUsage(TTWAIN_USAGE_MODE um);

void TTWAIN_FreeMemory(void *hMem);

int TTWAIN_CloseAll(void *hwnd);

int TTWAIN_OpenSourceManager(void *hwnd);

int TTWAIN_OpenDefaultSource(void);

int TTWAIN_GetHideUI(void);

void TTWAIN_SetHideUI(int flag);

void TTWAIN_SetOnDoneCallback(TTWAIN_ONDONE_CB *proc, void *arg);

void TTWAIN_SetOnErrorCallback(TTWAIN_ONERROR_CB *proc, void *arg);

#ifdef __cplusplus

}

#endif

#endif