方法
| 名称 | 描述 |
|---|---|
| SetBlockLayerType | 设置 Block 所在的层：背景、前景或隐藏。 |
对象关系图
Engine 对象（IEngine 接口）
Layout 相关对象
Text 相关对象
机制相关对象
分类相关对象
许可证相关对象
其他对象和方法
枚举
- 枚举
- AltoVersionEnum
- AvailableBarcodeModulesFlags
- AvailableEngineModulesFlags
- AvailableExportFormatsFlags
- AvailableLanguageSetsFlags
- AvailableTextTypesFlags
- AvailableVisualComponentsFlags
- AveragingMethodEnum
- BackgroundColorModeEnum
- BarcodeOrientationEnum
- BarcodeSupplementTypeEnum
- BarcodeTypeEnum
- BaseLanguageLetterSetEnum
- BitmapBitsFormatEnum
- BlockLayerTypeEnum
- BlockRoleEnum
- BlockTypeEnum
- BusinessCardFieldComponentTypeEnum
- BusinessCardFieldTypeEnum
- BwPictureFormatsEnum
- CaseRecognitionModeEnum
- CharacterFlags
- CheckingTextModeEnum
- CheckmarkCheckStateEnum
- CheckmarkTypeEnum
- ClassifierTypeEnum
- CodePageEnum
- ColorPictureFormatsEnum
- ComparatorExportFormatEnum
- CompressImageModeEnum
- CorrectOrientationModeEnum
- CorrectSkewModeEnum
- DetectColorRegionFlags
- DictionaryTypeEnum
- DitheringMethodEnum
- DocumentChangeTypeEnum
- DocumentTypeEnum
- FieldMarkingTypeEnum
- FileExportFormatEnum
- FontEmbeddingModeEnum
- FontFormattingModeEnum
- FontNamesFiltersEnum
- FontTypeEnum
- FREngineModuleEnum
- FREngineVersionEnum
- GapMeasurementUnitEnum
- GrayPictureFormatsEnum
- HTMLDocumentSplittingModeEnum
- HTMLFormatModeEnum
- HTMLSynthesisModeEnum
- HyperlinkSchemeEnum
- ImageColorTypeEnum
- ImageFileFormatEnum
- ImageSourceTypeEnum
- ImageTypeEnum
- LanguageCategoryEnum
- LanguageIdEnum
- LicenseCounterTypeEnum
- MessagesLanguageEnum
- ModificationTypeEnum
- MonospaceDetectionModeEnum
- MrzExportFormatEnum
- MrzFieldTypeEnum
- MrzFormatEnum
- MultiProcessingModeEnum
- NoiseModelEnum
- NumberingStyleEnum
- ObjectsColorEnum
- ObjectsTypeEnum
- OfficeConverterTypeEnum
- OverwriteResolutionModeEnum
- PageAnalysisModeEnum
- PageFlushingPolicyEnum
- PageOrientationEnum
- PageProcessingStageEnum
- PageSplitDirectionEnum
- PageSplitTypeEnum
- PaperSizeDetectionModeEnum
- PaperSizeModeEnum
- ParagraphAlignmentEnum
- ParagraphExtractionModeEnum
- ParagraphRoleEnum
- ParagraphTabAlignmentEnum
- PDFAComplianceModeEnum
- PDFAttachmentBindingEnum
- PDFEncryptionAlgorithmEnum
- PDFExportModeEnum
- PDFExportScenarioEnum
- PDFKeyLengthEnum
- PDFMRCModeEnum
- PDFResolutionTypeEnum
- PDFVersionEnum
- PictureColorityModeEnum
- QueuePushingModeEnum
- ReadingTypeEnum
- RecognitionModeEnum
- RotationTypeEnum
- RTFPageSynthesisModeEnum
- ScanBrightnessControlEnum
- ScanColorModeEnum
- ScanCompressionTypeEnum
- ScanPaperFeedModeEnum
- ScanPaperSizeEnum
- ScanPauseModeEnum
- ScanRotationAngleEnum
- ScanSourceApiTypeEnum
- ScanSourceStatusEnum
- ScanSourceUITypeEnum
- SeparatorTypeEnum
- SkewCorrectionModeEnum
- SourceContentReuseModeEnum
- SpeedQualityModeEnum
- StraightenLinesModeEnum
- ResolutionDetectionMode
- StyleParamsEnum
- TabLeaderTypeEnum
- TableSeparatorTypeEnum
- TextAndBackgroundColorModeEnum
- TextCategoryEnum
- TextEncodingTypeEnum
- TextLanguageLetterSetEnum
- TextLayoutRetentionModeEnum
- TextTypeEnum
- ThreeStatePropertyValueEnum
- TimeoutHandlingModeEnum
- TimeZoneTypeEnum
- TrainingModeEnum
- TXTExportFormatEnum
- UserPatternsTrainingFlags
- VolumeRefreshingPeriodEnum
- WordModelTypeEnum
- WriteDateEnum
- XLFileFormatEnum
- XLSXLayoutRetentionModeEnum
- XLSXPaperSizeEnum
- XMLCharAttributesEnum
- XPSExportModeEnum
- 标准返回代码
矢量图块
VectorPictureBlock 对象（IVectorPictureBlock 接口）
该对象表示一个矢量图片Block。IVectorPictureBlock 接口派生自 IBlock 接口，并继承其所有属性。该对象不提供任何用于处理矢量图片Block的专用属性或方法。
只有在页面分析时将 IPageAnalysisParams::DetectVectorGraphics 属性设为 TRUE，此类型的Block才会出现在版面中。“
对象关系图
对象关系图
该对象是 Block 对象的 GetAsVectorPictureBlock 方法的输出参数。
Block
使用 Layout 和 Block
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