code_app/modules/imgfmt/HGPdf.h

#ifndef __HGPDF_H__
#define __HGPDF_H__

#include "../base/HGDef.h"
#include "../base/HGBaseErr.h"
#include "HGImgFmtErr.h"
#include "../base/HGImage.h"
#include "HGJpeg.h"

HG_DECLARE_HANDLE(HGPdfReader);
HG_DECLARE_HANDLE(HGPdfImageWriter);

#pragma pack(push)
#pragma pack(4)

typedef struct
{
	HGUInt width;
	HGUInt height;
	HGUInt bpp;
}HGPdfPageInfo;

#pragma pack(pop)

HGEXPORT HGResult HGAPI HGImgFmt_CheckPdfFile(const HGChar* fileName, HGBool* isPdf);

HGEXPORT HGResult HGAPI HGImgFmt_OpenPdfReader(const HGChar* fileName, HGPdfReader* reader);

HGEXPORT HGResult HGAPI HGImgFmt_ClosePdfReader(HGPdfReader reader);

HGEXPORT HGResult HGAPI HGImgFmt_GetPdfPageCount(HGPdfReader reader, HGUInt* count);

HGEXPORT HGResult HGAPI HGImgFmt_GetPdfPageInfo(HGPdfReader reader, HGUInt page, HGPdfPageInfo *info);

HGEXPORT HGResult HGAPI HGImgFmt_LoadImageFromPdfReader(HGPdfReader reader, HGUInt page, HGFloat xScale, HGFloat yScale,
	HGUInt imgType, HGUInt imgOrigin, HGImage* image);

HGEXPORT HGResult HGAPI HGImgFmt_LoadPdfImage(const HGChar* fileName, HGPdfPageInfo *info, HGUInt imgType, HGUInt imgOrigin, HGImage* image);

HGEXPORT HGResult HGAPI HGImgFmt_OpenPdfImageWriter(const HGChar* fileName, HGPdfImageWriter* writer);

HGEXPORT HGResult HGAPI HGImgFmt_ClosePdfImageWriter(HGPdfImageWriter writer);

HGEXPORT HGResult HGAPI HGImgFmt_SaveJpegImageToPdfImageWriter(HGPdfImageWriter writer, HGImage image, const HGJpegSaveInfo* info);

HGEXPORT HGResult HGAPI HGImgFmt_SavePdfJpegImage(HGImage image, const HGJpegSaveInfo* info, const HGChar* fileName);

#endif /* __HGPDF_H__ */