L_OcrDocument_ClearPages

静态(L_TCHAR* outputFileName)｛//从Ocr1.tif, Ocr2.tif, Ocr3.tif和Ocr4.tif中创建多页TIFHBITMAPLIST bitmapList;L_INT retCode = -1;SAVEFILEOPTION = {0};retCode = L_CreateBitmapList(&bitmapList);如果(retCode != SUCCESS)返回retCode;BITMAPHANDLE位图[4];L_TCHAR *imageFiles[] = {MAKE_IMAGE_PATH(L_TEXT(“OCR1.tif”)),MAKE_IMAGE_PATH (L_TEXT (“OCR2.tif”)),MAKE_IMAGE_PATH (L_TEXT (“OCR3.tif”)),MAKE_IMAGE_PATH (L_TEXT (“OCR4.tif”}));为(L_INT i = 0;i < _countof(imageFiles);我+ +)｛retCode = L_LoadBitmap(imageFiles[i]， &bitmaps[i]，运算符(bitmaphandle)， 0, order_rgb, null, null);如果(retCode != SUCCESS)返回retCode;retCode = L_InsertBitmapListItem(bitmapList， (L_UINT)-1， &bitmaps[i]);如果(retCode != SUCCESS)转到清理;｝//保存输出文件retCode = L_GetDefaultSaveFileOption(&saveOptions，运算符(SAVEFILEOPTION));如果(retCode != SUCCESS)转到清理;//保存所有页面其。PageNumber = -1;retCode = L_SaveBitmapList(outputFileName, bitmapList, FILE_CCITT_GROUP4, 1,0， &saveOptions);清理://释放列表中的所有位图，并释放句柄L_DestroyBitmapList (bitmapList);返回retCode;｝L_INT L_OcrDocument_ClearPagesExample ()｛L_INT retCode = -1;L_OcrEngine ocrEngine = NULL;L_OcrDocumentManager = NULL;L_OcrDocument ocrDocument = NULL;L_OcrPage ocrPage = NULL;LOADFILEOPTION loadOpts;FILEINFO FILEINFO;//在这个例子中，我们需要一个多页的TIF文件。//如果你有一个不同的示例文件，替换下面的文件名L_TCHAR* multiPageFile = MAKE_IMAGE_PATH(L_TEXT(“Multipage.tif”));如果(CreateMultiPageFile(multiPageFile) != SUCCESS)返回失败;//创建引擎实例retCode = L_OcrEngineManager_CreateEngine(L_OcrEngineType_Advantage， &ocrEngine);如果(retCode != SUCCESS)返回retCode;//使用默认参数启动引擎retCode = L_OcrEngine_Startup(ocrEngine, NULL, OCR_ADVANTAGE_RUNTIME_DIR);如果(retCode == SUCCESS)｛retCode = L_OcrEngine_GetDocumentManager(ocrEngine， &ocrDocumentManager);如果(retCode != SUCCESS)转到清理;//创建基于内存的OCR文档retCode = L_OcrDocumentManager_CreateDocument(ocrDocumentManager， &ocrDocument, L_OcrCreateDocumentOptions_InMemory, NULL);如果(retCode != SUCCESS)转到清理;//加载我们创建的多页tif文件中的每一页并处理它们L_GetDefaultLoadFileOption (&loadOpts运算符(LOADFILEOPTION));retCode = L_FileInfo(multiPageFile， &fileInfo，运算符(FILEINFO)， FILEINFO_TOTALPAGES， & louses);如果(retCode != SUCCESS)转到清理;为(L_INT pageNum = 1;pageNum <= fileInfo.TotalPages;pageNum + +)｛//加载页面BITMAPHANDLE bitmap = {0};loadOpts。PageNumber = pageNum;retCode = L_LoadBitmap(multiPageFile， &bitmap，运算符(BITMAPHANDLE)， 0, ORDER_RGB， & louses， &fileInfo);如果(retCode != SUCCESS)转到清理;//创建Ocr页面retCode = L_OcrPage_FromBitmap(ocrEngine， &ocrPage， &bitmap, L_OcrBitmapSharingMode_AutoFree, NULL, NULL);如果(retCode != SUCCESS)｛L_FreeBitmap(位图);转到清理;｝//将所有权转移到OCR页面bitmap.Flags.Allocated = 0;//在页面中查找区域retCode = L_OcrPage_AutoZone(ocrPage, NULL, NULL);如果(retCode != SUCCESS)转到清理;/ /识别retCode = l_ocrpage_recognition (ocrPage, NULL, NULL);如果(retCode != SUCCESS)转到清理;//在文档文件模式中，识别后将OcrPage添加到OcrDocument中retCode = L_OcrDocument_AddPage(ocrDocument, ocrPage);如果(retCode != SUCCESS)转到清理;｝/ /保存retCode = L_OcrDocument_Save(ocrDocument, MAKE_IMAGE_PATH(L_TEXT(“Multipage.pdf”))， documentformat_pdf, null, null);L_UINT uPagesCount = 0;retCode = L_OcrDocument_GetPageCount(ocrDocument， &uPagesCount);如果(retCode != SUCCESS)转到清理;//删除文档的最后一页，插入第一页，然后重新保存文档。retCode = L_OcrDocument_RemovePageAt(ocrDocument, uPagesCount - 1);如果(retCode != SUCCESS)转到清理;L_OcrPage ocrPage2 = NULL;retCode = L_OcrDocument_GetPageAt(ocrDocument, 0， &ocrPage2);如果(retCode != SUCCESS)转到清理;retCode = L_OcrDocument_InsertPage(ocrDocument, uPagesCount, ocrPage2);如果(retCode != SUCCESS)转到清理;//通过获取页面的索引来检查页面是否插入到文档的末尾L_INT pageIndex = -1;L_OcrDocument_IndexOfPage(ocrDocument, ocrPage2， &pageIndex);assert(pageIndex == (L_INT)uPagesCount);retCode = L_OcrDocument_Save(ocrDocument, MAKE_IMAGE_PATH(L_TEXT(“Multipage2.pdf”))， documentformat_pdf, null, null);//现在清除OCR文档页面L_OcrDocument_ClearPages (ocrDocument);｝清理:如果(ocrDocument != NULL)L_OcrDocument_Destroy (ocrDocument);如果(ocrEngine != NULL)L_OcrEngine_Destroy (ocrEngine);返回retCode;｝