C++
const AcDbObjectId& background() const;
Description
Returns a const pointer to the background object. Returns null if it has none.
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- AcAp Classes
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- AcDb Classes
- Ac3PointAngleConstraint Class
- AcAngleConstraint Class
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- AcCenterPointConstraint Class
- AcColinearConstraint Class
- AcCompositeConstraint Class
- AcConcentricConstraint Class
- AcConstrained2PointsConstructionLine Class
- AcConstrainedArc Class
- AcConstrainedBoundedEllipse Class
- AcConstrainedBoundedLine Class
- AcConstrainedCircle Class
- AcConstrainedConstructionLine Class
- AcConstrainedCurve Class
- AcConstrainedDatumLine Class
- AcConstrainedEllipse Class
- AcConstrainedGeometry Class
- AcConstrainedImplicitPoint Class
- AcConstrainedLine Class
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- AcConstrainedRigidSet Class
- AcConstrainedSpline Class
- AcConstraintGroupNode Class
- AcDb2dPolyline Class
- AcDb2dVertex Class
- AcDb2LineAngularDimension Class
- AcDb3dPolyline Class
- AcDb3dPolylineVertex Class
- AcDb3dProfile Class
- AcDb3dSolid Class
- AcDb3PointAngularDimension Class
- AcDbAbstractViewTable Class
- AcDbAbstractViewTableIterator Class
- AcDbAbstractViewTableRecord Class
- AcDbAbstractViewTableRecord Constructor
- ~AcDbAbstractViewTableRecord Destructor
- AcDbAbstractViewTableRecord Methods
- ambientLightColor Method
- backClipDistance Method
- backClipEnabled Method
- background Method
- brightness Method
- centerPoint Method
- contrast Method
- defaultLightingType Method
- elevation Method
- frontClipAtEye Method
- frontClipDistance Method
- frontClipEnabled Method
- getUcs Method
- height Method
- isDefaultLightingOn Method
- isUcsOrthographic Method
- isViewOrthographic Method
- lensLength Method
- perspectiveEnabled Method
- setAmbientLightColor Method
- setBackClipDistance Method
- setBackClipEnabled Method
- setBackground Method
- setBrightness Method
- setCenterPoint Method
- setContrast Method
- setDefaultLightingOn Method
- setDefaultLightingType Method
- setElevation Method
- setFrontClipAtEye Method
- setFrontClipDistance Method
- setFrontClipEnabled Method
- setHeight Method
- setLensLength Method
- setPerspectiveEnabled Method
- setSun Method
- setTarget Method
- setUcs Method
- setUcsToWorld Method
- setViewDirection Method
- setViewTwist Method
- setVisualStyle Method
- setWidth Method
- sunId Method
- target Method
- toneOperatorParameters Method
- ucsName Method
- viewDirection Method
- viewTwist Method
- visualStyle Method
- width Method
- AcDbActionsToEvaluateCallback Class
- AcDbAlignedDimension Class
- AcDbAlignment Class
- AcDbAnnotationScale Class
- AcDbAnnotationScaleReactor Class
- AcDbAnnotativeObjectPE Class
- AcDbAppEntityGrips Class
- AcDbAppSystemVariables Class
- AcDbArc Class
- AcDbArcDimension Class
- AcDbArrayGripAppData Class
- AcDbAssoc2dConstraintCallback Class
- AcDbAssoc2dConstraintGroup Class
- AcDbAssocAction Class
- AcDbAssocActionBody Class
- AcDbAssocActionParam Class
- AcDbAssocArrayActionBody Class
- AcDbAssocArrayCommonParameters Class
- AcDbAssocArrayItem Class
- AcDbAssocArrayModifyActionBody Class
- AcDbAssocArrayParameters Class
- AcDbAssocArrayPathParameters Class
- AcDbAssocArrayPolarParameters Class
- AcDbAssocArrayRectangularParameters Class
- AcDbAssocAsmBodyActionParam Class
- AcDbAssocBlendSurfaceActionBody Class
- AcDbAssocCompoundActionParam Class
- AcDbAssocConstraintType Enumeration
- AcDbAssocCreateImpObject Enumeration
- AcDbAssocDependency Class
- AcDbAssocDependencyBody Class
- AcDbAssocDependencyNotificationDisabler Class
- AcDbAssocDependencyNotificationDisabler Constructor
- AcDbAssocDependencyPE Class
- AcDbAssocDimDependencyBody Class
- AcDbAssocDimDependencyBodyBase Class
- AcDbAssocDraggingState Enumeration
- AcDbAssocEdgeActionParam Class
- AcDbAssocEdgeChamferActionBody Class
- AcDbAssocEdgeFilletActionBody Class
- AcDbAssocEdgePersSubentId Class
- AcDbAssocEvaluationCallback Class
- AcDbAssocEvaluationMode Enumeration
- AcDbAssocEvaluationPriority Enumeration
- AcDbAssocExtendSurfaceActionBody Class
- AcDbAssocExtrudedSurfaceActionBody Class
- AcDbAssocFaceActionParam Class
- AcDbAssocFilletSurfaceActionBody Class
- AcDbAssocGeomDependency Class
- AcDbAssocIndexPersSubentId Class
- AcDbAssocLoftedSurfaceActionBody Class
- AcDbAssocManager Class
- AcDbAssocNetwork Class
- AcDbAssocNetworkIterator Class
- AcDbAssocNetworkSurfaceActionBody Class
- AcDbAssocObjectActionParam Class
- AcDbAssocObjectPointer Template
- AcDbAssocOffsetSurfaceActionBody Class
- AcDbAssocParamBasedActionBody Class
- AcDbAssocPatchSurfaceActionBody Class
- AcDbAssocPathActionParam Class
- AcDbAssocPathBasedSurfaceActionBody Class
- AcDbAssocPersSubentId Class
- AcDbAssocPersSubentIdPE Class
- AcDbAssocPlaneSurfaceActionBody Class
- AcDbAssocRevolvedSurfaceActionBody Class
- AcDbAssocSimplePersSubentId Class
- AcDbAssocSingleEdgePersSubentId Class
- AcDbAssocStatus Enumeration
- AcDbAssocSurfaceActionBody Class
- AcDbAssocSweptSurfaceActionBody Class
- AcDbAssocTransformationType Enumeration
- AcDbAssocTransInfo Structure
- AcDbAssocTrimSurfaceActionBody Class
- AcDbAssocValueDependency Class
- AcDbAssocValueProviderPE Class
- AcDbAssocVariable Class
- AcDbAssocVariableCallback Class
- AcDbAssocVertexActionParam Class
- AcDbAttribute Class
- AcDbAttributeDefinition Class
- AcDbAuditInfo Class
- AcDbAuditRecreatePE Class
- AcDbBackground Class
- AcDbBlendOptions Class
- AcDbBlockBegin Class
- AcDbBlockChangeIterator Class
- AcDbBlockEnd Class
- AcDbBlockInsertionPoints Class
- AcDbBlockReference Class
- AcDbBlockReferenceIdIterator Class
- AcDbBlockTable Class
- AcDbBlockTableIterator Class
- AcDbBlockTableRecord Class
- AcDbBlockTableRecordIterator Class
- AcDbBody Class
- AcDbBreakData Class
- AcDbBreakPointRef Class
- AcDbCamera Class
- AcDbCircle Class
- AcDbClassIterator Class
- AcDbColor Class
- AcDbCompositeFilteredBlockIterator Class
- AcDbCompoundObjectId Class
- AcDbCurve Class
- AcDbCurvePath Class
- AcDbCustomOsnapInfo Class
- AcDbCustomOsnapManager Class
- AcDbCustomOsnapMode Class
- AcDbCustomOsnapMode2 Class
- AcDbDatabase Class
- AcDbDatabaseReactor Class
- AcDbDatabaseSummaryInfo Class
- AcDbDataCell Class
- AcDbDataColumn Class
- AcDbDataLink Class
- AcDbDataLinkManager Class
- AcDbDataTable Class
- AcDbDate Class
- AcDbDeepCloneFiler Class
- AcDbDetailSymbol Class
- AcDbDetailViewStyle Class
- AcDbDgnDefinition Class
- AcDbDgnReference Class
- AcDbDgnRefFileRepath Class
- AcDbDgnUnderlayItem Class
- AcDbDiametricDimension Class
- AcDbDictionary Class
- AcDbDictionaryIterator Class
- AcDbDictionaryWithDefault Class
- AcDbDictUtil Namespace
- AcDbDimAssoc Class
- AcDbDimData Class
- AcDbDimDataPtrArray Type
- AcDbDimension Class
- AcDbDimensionStyleOverrule Class
- AcDbDimStyleTable Class
- AcDbDimStyleTableIterator Class
- AcDbDimStyleTableRecord Class
- AcDbDisableAnnoAutoScale Class
- AcDbDwfDefinition Class
- AcDbDwfReference Class
- AcDbDwgFiler Class
- AcDbDxfFiler Class
- AcDbDynamicUCSPE Class
- AcDbDynBlockReference Class
- AcDbDynBlockReferenceProperty Class
- AcDbDynBlockTableRecord Class
- AcDbEdgeRef Class
- AcDbEllipse Class
- AcDbEntity Class
- AcDbEntityHyperlinkPE Class
- AcDbEntityReactor Class
- AcDbEvalConnectable Class
- AcDbEvalContext Class
- AcDbEvalContextIterator Class
- AcDbEvalContextPair Class
- AcDbEvalEdgeInfo Class
- AcDbEvalExpr Class
- AcDbEvalGraph Class
- AcDbEvalIdMap Class
- AcDbEvalVariant Class
- AcDbExtents Class
- AcDbExtents2d Class
- AcDbExtrudedSurface Class
- AcDbFace Class
- AcDbFaceRecord Class
- AcDbFaceRef Class
- AcDbFcf Class
- AcDbField Class
- AcDbFilter Class
- AcDbFilteredBlockIterator Class
- AcDbFormattedTableData Class
- AcDbFrame Class
- AcDbFullSubentPath Class
- AcDbGeoCompoundCoordinateSystem Class
- AcDbGeoCoordinateSystem Class
- AcDbGeoCoordinateSystemCategory Class
- AcDbGeoCoordinateSystemTransformer Class
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- AcDbGeoDataReactor Class
- AcDbGeoMap Class
- AcDbGeometryOverrule Class
- AcDbGeomRef Class
- AcDbGeoPositionMarker Class
- AcDbGeoVerticalCoordinateSystem Class
- AcDbGradientBackground Class
- AcDbGraph Class
- AcDbGraphNode Class
- AcDbGraphStack Class
- AcDbGripData Class
- AcDbGripOperations Namespace
- AcDbGripOverrule Class
- AcDbGroundPlaneBackground Class
- AcDbGroup Class
- AcDbGroupIterator Class
- AcDbHandle Class
- AcDbHardOwnershipId Class
- AcDbHardPointerId Class
- AcDbHatch Class
- AcDbHelix Class
- AcDbHighlightOverrule Class
- AcDbHighlightStateOverrule Class
- AcDbHomeView Class
- AcDbHostApplicationProgressMeter Class
- AcDbHostApplicationServices Class
- AcDbHyperlink Class
- AcDbHyperlinkCollection Class
- AcDbIBLBackground Class
- AcDbIdMapping Class
- AcDbIdMappingIter Class
- AcDbIdPair Class
- AcDbImage Class
- AcDbImageBackground Class
- AcDbIndex Class
- AcDbIndexFilterManager Namespace
- AcDbIndexUpdateData Class
- AcDbIndexUpdateDataIterator Class
- AcDbIntArray Type
- AcDbInterferencePE Class
- AcDbItemLocator Class
- AcDbJoinEntityPE Class
- AcDbLayerFilter Class
- AcDbLayerIndex Class
- AcDbLayerIndexIterator Class
- AcDbLayerStateManager Class
- AcDbLayerStateManagerReactor Class
- AcDbLayerTable Class
- AcDbLayerTableIterator Class
- AcDbLayerTableRecord Class
- AcDbLayout Class
- AcDbLayoutManager Class
- AcDbLayoutManagerReactor Class
- AcDbLeader Class
- AcDbLight Class
- AcDbLine Class
- AcDbLinetypeTable Class
- AcDbLinetypeTableIterator Class
- AcDbLinetypeTableRecord Class
- AcDbLinkedData Class
- AcDbLinkedTableData Class
- AcDbLoftedSurface Class
- AcDbLoftOptions Class
- AcDbLoftProfile Class
- AcDbLongTransaction Class
- AcDbLongTransWorkSetIterator Class
- AcDbMatchProperties Class
- AcDbMaterial Class
- AcDbMentalRayRenderSettings Class
- AcDbMInsertBlock Class
- AcDbMLeader Class
- AcDbMLeaderStyle Class
- AcDbMline Class
- AcDbMlineStyle Class
- AcDbModelDocViewStyle Class
- AcDbMotionPath Class
- AcDbMPolygon Class
- AcDbMText Class
- AcDbMultiModesGripPE Class
- AcDbNamedPath Class
- AcDbNamedObjectDictionaryPointer Class
- AcDbNonSubEntDynamicUCSPE Class
- AcDbNurbSurface Class
- AcDbObject Class
- AcDbObjectContext Class
- AcDbObjectContextCollection Class
- AcDbObjectContextCollectionIterator Class
- AcDbObjectContextInterface Class
- AcDbObjectContextManager Class
- AcDbObjectId Class
- AcDbObjectIdArray Type
- AcDbObjectIdGraph Class
- AcDbObjectIdGraphNode Class
- AcDbObjectIterator Class
- AcDbObjectOverrule Class
- AcDbObjectPointer Template
- AcDbObjectPointerBase Template
- AcDbObjectReactor Class
- AcDbOle2Frame Class
- AcDbOleFrame Class
- AcDbOrdinateDimension Class
- AcDbOsnapOverrule Class
- AcDbOsnapPointRef Class
- AcDbPaperOrientationPE Class
- AcDbParentTransformOfChildPE Class
- AcDbPasswordedFile Class
- AcDbPathRef Class
- AcDbPdfDefinition Class
- AcDbPdfReference Class
- AcDbPlaceHolder Class
- AcDbPlaneSurface Class
- AcDbPlotSettings Class
- AcDbPlotSettingsValidator Class
- AcDbPoint Class
- AcDbPointCloudClassificationColorRamp Class
- AcDbPointCloudColorMap Class
- AcDbPointCloudColorRamp Class
- AcDbPointCloudCrop Class
- AcDbPointCloudCropStateManager Class
- AcDbPointCloudDefEx Class
- AcDbPointCloudDefReactorEx Class
- AcDbPointCloudEx Class
- AcDbPointPath Class
- AcDbPointRef Class
- AcDbPolyFaceMesh Class
- AcDbPolyFaceMeshVertex Class
- AcDbPolygonMesh Class
- AcDbPolygonMeshVertex Class
- AcDbPolyline Class
- AcDbPropertiesOverrule Class
- AcDbPropertyFilterCustomizationPE Class
- AcDbProxyEntity Class
- AcDbProxyObject Class
- AcDbRadialDimension Class
- AcDbRadialDimensionLarge Class
- AcDbRapidRTRenderSettings Class
- AcDbRasterImage Class
- AcDbRasterImageDef Class
- AcDbRasterImageDefFileAccessReactor Class
- AcDbRasterImageDefReactor Class
- AcDbRasterImageDefTransReactor Class
- AcDbRasterVariables Class
- AcDbRay Class
- AcDbRecover Class
- AcDbRecoverCallBack Class
- AcDbRegAppTable Class
- AcDbRegAppTableIterator Class
- AcDbRegAppTableRecord Class
- AcDbRegion Class
- AcDbRenderEnvironment Class
- AcDbRenderGlobal Class
- AcDbRenderSettings Class
- AcDbRevolvedSurface Class
- AcDbRevolveOptions Class
- AcDbRotatedDimension Class
- AcDbSection Class
- AcDbSectionablePE Class
- AcDbSectionManager Class
- AcDbSectionManagerIterator Class
- AcDbSectionSettings Class
- AcDbSectionSymbol Class
- AcDbSectionViewStyle Class
- AcDbSelectGrip Class
- AcDbSelectGrip2 Class
- AcDbSequenceEnd Class
- AcDbShape Class
- AcDbSkyBackground Class
- AcDbSmartObjectPointer Template
- AcDbSoftOwnershipId Class
- AcDbSoftPointerId Class
- AcDbSolid Class
- AcDbSolidBackground Class
- AcDbSortentsTable Class
- AcDbSpatialFilter Class
- AcDbSpatialIndex Class
- AcDbSpatialIndexIterator
- AcDbSpline Class
- AcDbSubDMesh Class
- AcDbSubentGeometry Class
- AcDbSubentId Class
- AcDbSubentityOverrule Class
- AcDbSubentRef Class
- AcDbSummaryInfoManager Class
- AcDbSummaryInfoReactor Class
- AcDbSun Class
- AcDbSurface Class
- AcDbSurfaceTrimInfo Class
- AcDbSweepOptions Class
- AcDbSweptSurface Class
- AcDbSymbolTable Class
- AcDbSymbolTableIterator Class
- AcDbSymbolTablePointer Template
- AcDbSymbolTableRecord Class
- AcDbSymbolTableRecordPointer Template
- AcDbSymbolUtilities
- AcDbTable Class
- AcDbTableContent Class
- AcDbTableIterator Class
- AcDbTableStyle Class
- AcDbTableTemplate Class
- AcDbText Class
- AcDbTextEditor Class
- AcDbTextEditorColumn Class
- AcDbTextEditorColumns Class
- AcDbTextEditorCursor Class
- AcDbTextEditorLocation Class
- AcDbTextEditorParagraph Class
- AcDbTextEditorParagraphIterator Class
- AcDbTextEditorParagraphTab Class
- AcDbTextEditorSelectable Class
- AcDbTextEditorSelection Class
- AcDbTextEditorSelectionBase Class
- AcDbTextEditorStack Class
- AcDbTextEditorWipeout Class
- AcDbTextStyleTable Class
- AcDbTextStyleTableIterator Class
- AcDbTextStyleTableRecord Class
- AcDbTrace Class
- AcDbTransactionManager Class
- AcDbTransformOverrule Class
- AcDbUCSTable Class
- AcDbUCSTableIterator Class
- AcDbUCSTableRecord Class
- AcDbUnderlayDefinition Class
- AcDbUnderlayFile Class
- AcDbUnderlayHost Class
- AcDbUnderlayItem Class
- AcDbUnderlayReference Class
- AcDbVertex Class
- AcDbVertexRef Class
- AcDbViewBorder Class
- AcDbViewport Class
- AcDbViewportTable Class
- AcDbViewportTableIterator Class
- AcDbViewportTableRecord Class
- AcDbViewRepBlockReference Class
- AcDbViewSymbol Class
- AcDbViewTable Class
- AcDbViewTableIterator Class
- AcDbViewTableRecord Class
- AcDbVisibilityOverrule Class
- AcDbVisualStyle Class
- AcDbVoidPtrArray Type
- AcDbWblockCloneFiler Class
- AcDbWipeout Class
- AcDbXline Class
- AcDbXObject Class
- AcDbXrecord Class
- AcDbXrecordIterator Class
- AcDbXrefGraph Class
- AcDbXrefGraphNode Class
- AcDbXrefObjectId Class
- AcDistanceConstraint Class
- AcEqualCurvatureConstraint Class
- AcEqualDistanceConstraint Class
- AcEqualHelpParameterConstraint Class
- AcEqualLengthConstraint Class
- AcEqualRadiusConstraint Class
- AcExplicitConstraint Class
- AcFixedConstraint Class
- AcG2SmoothConstraint Class
- AcGeomConstraint Class
- AcGraph Class
- AcGraphNode Class
- AcHelpParameter Class
- AcHorizontalConstraint Class
- AcMidPointConstraint Class
- AcNormalConstraint Class
- AcParallelConstraint Class
- AcPerpendicularConstraint Class
- AcPointCoincidenceConstraint Class
- AcPointCurveConstraint Class
- AcRadiusDiameterConstraint Class
- AcSymmetricConstraint Class
- AcTangentConstraint Class
- AcVerticalConstraint Class
- ReadableAcDbObject Template
- WritableAcDbObject Class
- AcEd Classes (WIN)
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