Altium NEXUS Documentation

Schematic API Types

Created: June 6, 2016 | Updated: September 26, 2016

Parent page: Technical Reference - Schematic API

Please note that this documentation was last updated for an older version of Altium NEXUS. While many of the principles and approaches will remain the same, be aware that interfaces, objects, methods, properties, and the like will have changed since then, and will not reflect the entirety of those found in later versions of the software.

Schematic API: Enumerated Types Reference

The Enumerated Types are used for many of the Schematic Interfaces methods covered in this section. For example the ISch_Port interface has a ConnectedEnd property which returns a TPortConnectedEnd type. You can use the Enumerated Types reference to check the range for the TPortConnectedEnd type.

The Schematic API Enumerated Types reference includes the following content:

TAngle
TAutoPanStyle
TCrossSheetConnectorStyle
TCoordRect
TCoord
TConnectivityScope
TConnectionNodeType
TComponentDisplay
TColor
TChosenDocumentScope
TCursorMove
TCursorShape
TDistance
TDrawMode
TDrawQuality
TDynamicStirng
TIeeeSymbol
TFindReplaceIdentifierScope
THorizontalAlign
THitTestResult
THitTestMode
TEditingAction
TFontName
TFontID
TFileName
TGridPreset
TIterationDepth
TLeftRightSide

TLibraryAutoZoom
TLibraryScope
TLinePlaceMode
TLineShape
TLineStyle
TLocation
TMyRect
TOrcadFootprint
TObjectAttribute
TObjectCreationMode
TObjectId
TObjectSet
TOpenBusPortType
TOpenBusComponentKind
TOpenBusPortKind
TOpenBusInternalPinType
TParameter_ReadOnlyState
TParameterType
TPinElectrical
TPlacementMode
TPolylineCutterMode
TPortArrowStyle
TPortConnectedEnd
TPortIO
TPowerObjectStyle
TProbeMethod
TRotationBy90
TPrintKind

TLibraryAutoZoom
TLibraryScope
TLinePlaceMode
TLineShape
TLineStyle
TLocation
TMyRect
TOrcadFootprint
TObjectAttribute
TObjectCreationMode
TObjectId
TObjectSet
TOpenBusPortType
TOpenBusComponentKind
TOpenBusPortKind
TOpenBusInternalPinType
TParameter_ReadOnlyState
TParameterType
TPinElectrical
TPlacementMode
TPolylineCutterMode
TPortArrowStyle
TPortConnectedEnd
TPortIO
TPowerObjectStyle
TProbeMethod
TRotationBy90
TPrintKind

 

TAngle

TAngle = TReal;

TAutoPanStyle

TAutoPanStyle = (
    eAutoPanOff,
    eAutoPanFixedJump,
    eAutoPanReCenter
     );

TCrossSheetConnectorStyle

TCrossSheetConnectorStyle = (
        eCrossSheetLeft,
        eCrossSheetRight
    );

TCoordRect

TCoordRect                   = Record
        Case Integer of
           0 :(left, bottom, right, top : TCoord);
           1 :(x1,   y1,     x2,    y2  : TCoord);
           2 :(Location1,    Location2  : TLocation);
End;

TCoord

TCoord = Integer;

TConnectivityScope

TConnectivityScope = (eConnectivity_ConnectionOnly, eConnectivity_WholeNet);

TConnectionNodeType

TConnectionNodeType = (eConnectionNode_IntraSheetLink, eConnectionNode_InterSheetLink, eConnectionNode_Hidden);

TComponentDisplay

TComponentDisplay = (
    eCompBlock,
    eCompDevice,
    eCompPower,
    eCompSymbol
     );

TColor

Syntax
TColor  = Graphics.TColor;
Notes
The TColor value specifies a 6 digit hexadecimal number of the $FFFFFF format.  For example the color blue would be RGB:0,0,255 and Hex:FF0000 therefore the converted decimal value would be 16711680.  The following formula may be used to calculate the required value, R+256*(G+(256*B)). 

This TColor value is defined from the Graphics Unit of the Borland Delphi's VCL library.

Examples
Color=0 is black, Color=255 is red, Color=65280 is green   Color=16711680 is blue   Color=16777215 is white. Decimal or hexadecimal values can be assigned.
See also
ISch_Preferences
IComponentPainterView
ISch_GraphicalObject
ISch_TextFrame
ISch_SheetEntry
ISch_HarnessEntry
ISch_Component

TChosenDocumentScope

TChosenDocumentScope = (eScope_None, eScope_SingleDocument, eScope_ProjectDocuments, eScope_OpenDocuments);

TCursorMove

TCursorMove = (
    eCursorLeft,
    eCursorRight,
    eCursorTop,
    eCursorBottom);

TCursorShape

TCursorShape = (
       eLargeCursor90,
       eSmallCursor90,
       eSmallCursor45,
       eTinyCursor45);

TDistance

TDistance = Integer;

TDrawMode

TDrawMode = (
    eDrawFull,
    eDrawDraft,
    eDrawHidden);

TDrawQuality

TDrawQuality = (eFullQuality,eDraftQuality);

TDynamicStirng

TDynamicString = AnsiString;

TIeeeSymbol

TIeeeSymbol = (
    eNoSymbol,
    eDot,
    eRightLeftSignalFlow,
    eClock,
    eActiveLowInput,
    eAnalogSignalIn,
    eNotLogicConnection,
    eShiftRight,
    ePostPonedOutput,
    eOpenCollector,
    eHiz,
    eHighCurrent,
    ePulse,
    eSchmitt,
    eDelay,
    eGroupLine,
    eGroupBin,
    eActiveLowOutput,
    ePiSymbol,
    eGreaterEqual,
    eLessEqual,
    eSigma,
    eOpenCollectorPullUp,
    eOpenEmitter,
    eOpenEmitterPullUp,
    eDigitalSignalIn,
    eAnd,
    eInvertor,
    eOr,
    eXor,
    eShiftLeft,
    eInputOutput,
    eOpenCircuitOutput,
    eLeftRightSignalFlow,
    eBidirectionalSignalFlow);

TFindReplaceIdentifierScope

TFindReplaceIdentifierScope = (
       eFindReplace_AllIdentifiers,
       eFindReplace_NetIdentifiersOnly,
       eFindReplace_DesignatorsOnly);

THorizontalAlign

   THorizontalAlign = (
       eHorizontalCentreAlign, // eVerticalCentreAlign
       eLeftAlign,             // eTopAlign
       eRightAlign             // eBottomAlign
        );

THitTestResult

THitTestResult   = (eHitTest_Fail,
                    eHitTest_NoAction,
                    eHitTest_Move,
                    eHitTest_InPlaceEdit,
                    eHitTest_CopyPaste,
                    eHitTest_Resize_Any,
                    eHitTest_Resize_EndAngle,
                    eHitTest_Resize_StartAngle,
                    eHitTest_Resize_SecondaryRadius,
                    eHitTest_Resize_Radius,
                    eHitTest_Resize_CornerTopLeft,
                    eHitTest_Resize_CornerTopRight,
                    eHitTest_Resize_CornerBottomRight,
                    eHitTest_Resize_CornerBottomLeft,
                    eHitTest_Resize_SideLeft,
                    eHitTest_Resize_SideRight,
                    eHitTest_Resize_SideTop  ,
                    eHitTest_Resize_SideBottom,
                    eHitTest_Resize_Vertical,
                    eHitTest_Resize_Horizontal,
                    eHitTest_Resize_SE_NW,
                    eHitTest_Resize_SW_NE);

THitTestMode

THitTestMode = (
       eHitTest_AllObjects,
       eHitTest_OnlyAccessible
       );

TEditingAction

TEditingAction = (eEditAction_DontCare, eEditAction_Move, eEditAction_Change,eEditAction_Delete,eEditAction_Select);

TFontName

TFontName = String[lf_FaceSize + 1];

TFontID

TFontID = Integer;

TFileName

TFileName = TString;

TGridPreset

TGridPreset = (eDXPPreset, eCoarse2, eCoarse3, eFine2, eFine3, eElectrical);

TIterationDepth

TIterationDepth     = (eIterateFirstLevel, eIterateFilteredLevels, eIterateAllLevels);

TLeftRightSide

TLeftRightSide = (
    eLeftSide,
    eRightSide,
    eTopSide,
    eBottomSide
     );

TLibraryAutoZoom

TLibraryAutoZoom = (lazNoZoomChange, lazRememberLast, lazCenter);

TLibraryScope

TLibraryScope = (lsCurrentComponnet, lsAllComponents);

TLinePlaceMode

TLinePlaceMode  = (eLineAnyAngle,
                   eLine90Start,
                   eLine90End,
                   eLine45Start,
                   eLine45End,
                   eLineArcStart,
                   eLineArcEnd,
                   eAutoWire );

TLineShape

   TLineShape = (
       eLineShapeNone,
       eLineShapeArrow,
       eLineShapeSolidArrow,
       eLineShapeTail,
       eLineShapeSolidTail,
       eLineShapeCircle,
       eLineShapeSquare
   );

TLineStyle

   TLineStyle = (
       eLineStyleSolid,
       eLineStyleDashed,
       eLineStyleDotted
        );

TLocation

Type
TLocation = TPoint;
Description
The TLocation type is used to define a point in X,Y coordinates for a design object.
Where the TPoint = packed record  X: Longint;  Y: Longint;end;
See also
ISch_GraphicalObject interface
ISch_Line
ISch_Rectangle
ISch_HarnessConnector
ISch_Polygon
IConnection
IConnectionArray

TMyRect

TMyRect = Record
    Left,Right,Top, Bottom, Width, Height : Integer;
End;

TOrcadFootprint

TOrcadFootPrint = (
    ePartfield1,
    ePartfield2,
    ePartfield3,
    ePartfield4,
    ePartfield5,
    ePartfield6,
    ePartfield7,
    ePartfield8,
    eIgnore);

TObjectAttribute

TObjectAttribute = (eObjectAttribute_ObjectId,
                    eObjectAttribute_DocumentName,
                    eObjectAttribute_Color,
                    eObjectAttribute_TextColor,
                    eObjectAttribute_AreaColor,
                    eObjectAttribute_LocationX,
                    eObjectAttribute_LocationY,
                    eObjectAttribute_CornerLocationX,
                    eObjectAttribute_CornerLocationY,
                    eObjectAttribute_OwnerPartId,
                    eObjectAttribute_OwnerPartDisplayMode,
                    eObjectAttribute_Width,
                    eObjectAttribute_Radius,
                    eObjectAttribute_Solid,
                    eObjectAttribute_Transparent,
                    eObjectAttribute_StartAngle,
                    eObjectAttribute_EndAngle,
                    eObjectAttribute_SecondaryRadius,
                    eObjectAttribute_StringText,
                    eObjectAttribute_LongStringText,
                    eObjectAttribute_LineStyle,
                    eObjectAttribute_StartLineShape,
                    eObjectAttribute_EndLineShape,
                    eObjectAttribute_LineShapeSize,
                    eObjectAttribute_IsHidden,
                    eObjectAttribute_FontId,
                    eObjectAttribute_Orientation,
                    eObjectAttribute_HorizontalJustification,
                    eObjectAttribute_VerticalJustification,
                    eObjectAttribute_TextHorizontalAnchor,
                    eObjectAttribute_TextVerticalAnchor,
                    eObjectAttribute_Alignment,
                    eObjectAttribute_BorderWidth,
                    eObjectAttribute_LineWidth,
                    eObjectAttribute_JunctionSize,
                    eObjectAttribute_Locked,
                    eObjectAttribute_Accessible,
                    eObjectAttribute_Name,
                    eObjectAttribute_OwnerName,
                    eObjectAttribute_Description,
                    eObjectAttribute_ShowName,
                    eObjectAttribute_IsMirrored,
                    eObjectAttribute_DesignatorLocked,
                    eObjectAttribute_PartIdLocked,
                    eObjectAttribute_PinsMoveable,
                    eObjectAttribute_FileName,
                    eObjectAttribute_TargetFileName,
                    eObjectAttribute_ImageKeepAspect,
                    eObjectAttribute_ImageEmbed,
                    eObjectAttribute_ParametersList,
                    eObjectAttribute_ParameterValue,
                    eObjectAttribute_ParameterName,
                    eObjectAttribute_ParameterType,
                    eObjectAttribute_ParameterReadOnlyState,
                    eObjectAttribute_ParameterAllowLibrarySynchronize,
                    eObjectAttribute_ParameterAllowDatabaseSynchronize,
                    eObjectAttribute_TextAutoposition,
                    eObjectAttribute_PinWidth,
                    eObjectAttribute_PinFormalType,
                    eObjectAttribute_PinDefaultValue,
                    eObjectAttribute_PinDesignator,
                    eObjectAttribute_PinHiddenNetName,
                    eObjectAttribute_PinShowDesignator,
                    eObjectAttribute_PinElectrical,
                    eObjectAttribute_PinLength,
                    eObjectAttribute_PinIeeeSymbolInner,
                    eObjectAttribute_PinIeeeSymbolOuter,
                    eObjectAttribute_PinIeeeSymbolInnerEdge,
                    eObjectAttribute_PinIeeeSymbolOuterEdge,
                    eObjectAttribute_PinSwapId_Pin,
                    eObjectAttribute_PinSwapId_Part,
                    eObjectAttribute_PinSwapId_PartPin,
                    eObjectAttribute_PortArrowStyle,
                    eObjectAttribute_PortIOType,
                    eObjectAttribute_PowerObjectStyle,
                    eObjectAttribute_PowerObjectShowNetName,
                    eObjectAttribute_CrossSheetConnectorStyle,
                    eObjectAttribute_RoundRectangleCornerRadiusX,
                    eObjectAttribute_RoundRectangleCornerRadiusY,
                    eObjectAttribute_SchComponentLibraryName,
                    eObjectAttribute_SchComponentLibReference,
                    eObjectAttribute_SchComponentDesignator,
                    eObjectAttribute_SchComponentDisplayMode,
                    eObjectAttribute_SchComponentPartId,
                    eObjectAttribute_SchComponentComment,
                    eObjectAttribute_SchComponentFootprint,
                    eObjectAttribute_SchComponentKind,
                    eObjectAttribute_ShowHiddenFields,
                    eObjectAttribute_ShowHiddenPins,
                    eObjectAttribute_ShowDesignator,
                    eObjectAttribute_SheetFileName,
                    eObjectAttribute_SheetName,
                    eObjectAttribute_SheetEntrySide,
                    eObjectAttribute_SheetEntryDistanceFromTop,
                    eObjectAttribute_IeeeSymbol,
                    eObjectAttribute_SymbolScaleFactor,
                    eObjectAttribute_TaskHolderProcess,
                    eObjectAttribute_TaskHolderInstanceName,
                    eObjectAttribute_TaskHolderConfiguration,
                    eObjectAttribute_TextFrameWordWrap,
                    eObjectAttribute_TextFrameShowBorder,
                    eObjectAttribute_TextFrameClipToRect,
                    eObjectAttribute_Author,
                    eObjectAttribute_Collapsed,
                    eObjectAttribute_ErrorKind,
                    eObjectAttribute_SelectedVertex_X,
                    eObjectAttribute_SelectedVertex_Y,
                    eObjectAttribute_SelectedVertex2_X,
                    eObjectAttribute_SelectedVertex2_Y,
                    eObjectAttribute_UnionIndex,
                    eObjectAttribute_DatabaseTableName,
                    eObjectAttribute_SchComponentUseLibraryName,
                    eObjectAttribute_SchComponentUseDBTableName,
                    eObjectAttribute_DesignItemID,
                    eObjectAttribute_OpenBusComponentKind,
                    eobjectAttribute_PrimaryConnectionPosition,
                    eObjectAttribute_HarnessConnectorSide,
                    eObjectAttribute_HarnessType,
                    eObjectAttribute_HideHarnessConnectorType,
                    eObjectAttribute_BusTextStyle,
                    eObjectAttribute_ArrowKind,
                    eObjectAttribute_OpenBusPortType,
                    eObjectAttribute_OpenBusPortLink,
                    eObjectAttribute_OpenBusLinkMasterPort,
                    eObjectAttribute_OpenBusLinkSlavePort
                    );

TObjectCreationMode

TObjectCreationMode = (eCreate_Default, eCreate_GlobalCopy);

TObjectId

TObjectId     = (eFirstObjectID,
                 eClipBoardContainer,
                 eNote,
                 eProbe,
                 eRectangle,
                 eLine,
                 eConnectionLine,
                 eBusEntry,
                 eArc,
                 eEllipticalArc,
                 eRoundRectangle,
                 eImage,
                 ePie,
                 eTextFrame,
                 eEllipse,
                 eJunction,
                 ePolygon,
                 ePolyline,
                 eWire,
                 eBus,
                 eBezier,
                 eLabel,
                 eNetLabel,
                 eDesignator,
                 eSchComponent,
                 eParameter,
                 eParameterSet,
                 eParameterList,
                 eSheetName,
                 eSheetFileName,
                 eSheet,
                 eSchLib,
                 eSymbol,
                 eNoERC,
                 eErrorMarker,
                 ePin,
                 ePort,
                 ePowerObject,
                 eSheetEntry,
                 eSheetSymbol,
                 eTemplate,
                 eTaskHolder,
                 eMapDefiner,
                 eImplementationMap,
                 eImplementation,
                 eImplementationsList,
                 eCrossSheetConnector,
                 eCompileMask,
                 eOpenBusComponent,
                 eOpenBusLink,
                 eOpenBusDesignator,
                 eHarnessConnector,
                 eHarnessEntry,
                 eHarnessConnectorType,
                 eSignalHarness,
                 eOpenBusPort,
                 eLastObjectId
                );

TObjectSet

TObjectSet = Set Of TObjectID;

TOpenBusPortType

TOpenBusPortType      = (obptUnspecified, obptMaster, obptSlave);

TOpenBusComponentKind

TOpenBusComponentKind = (obckProcessor, obckArbiter, obckInterconnect, obckPeripheral, obckMemory, obckConnector, obckTerminator);

TOpenBusPortKind

TOpenBusPortKind      = (obpkPeripheralMaster, obpkPeripheralSlave,
                             obpkArbiterMaster   , obpkArbiterSlave,
                             obpkInterconMaster  , obpkInterconSlave,
                             obpkConnectorMaster , obpkConnectorSlave)

TOpenBusInternalPinType

TOpenBusInternalPinType = (iptInterrupt, iptReset, iptClock);

TParameter_ReadOnlyState

TParameter_ReadOnlyState = (
       eReadOnly_None,
       eReadOnly_Name,
       eReadOnly_Value,
       eReadOnly_NameAndValue
       );

TParameterType

TParameterType = (eParameterType_String,
                  eParameterType_Boolean,
                  eParameterType_Integer,
                  eParameterType_Float);

TPinElectrical

TPinElectrical = (
       eElectricInput,
       eElectricIO,
       eElectricOutput,
       eElectricOpenCollector,
       eElectricPassive,
       eElectricHiZ,
       eElectricOpenEmitter,
       eElectricPower);

TPlacementMode

TPlacementMode   = (ePlacementMode_Single, ePlacementMode_Multiple);

TPolylineCutterMode

TPolylineCutterMode    = (eCutterSnapToSegment, eCutterGridSize, eCutterFixedLength);

TPortArrowStyle

TPortArrowStyle = (
       ePortNone,
       ePortLeft,
       ePortRight,
       ePortLeftRight,
       ePortNoneVertical,
       ePortTop,
       ePortBottom,
       ePortTopBottom
        );

TPortConnectedEnd

TPortConnectedEnd = (
    ePortConnectedEnd_None,
    ePortConnectedEnd_Origin,    //connected at port Location
    ePortConnectedEnd_Extremity, //connected at the other end
    ePortConnectedEnd_Both       //connected at both ends
     );

TPortIO

TPortIO = (
    ePortUnspecified,
    ePortOutput,
    ePortInput,
    ePortBidirectional
     );

TPowerObjectStyle

TPowerObjectStyle = (
       ePowerCircle,
       ePowerArrow,
       ePowerBar,
       ePowerWave,
       ePowerGndPower,
       ePowerGndSignal,
       ePowerGndEarth
        );

TProbeMethod

TProbeMethod = (
    eProbeMethodAllNets,
    eProbeMethodProbedNetsOnly
     );

TRotationBy90

TRotationBy90 =
    eRotate0,
    eRotate90,
    eRotate180,
    eRotate270
     );

TPrintKind

TPrintKind = (ePrintKind_FullColor,ePrintKind_GrayScale,ePrintKind_Monochrome);

TPlacementResult

TPlacementResult = (eSingleObjectPlacementProcessAborted,eWholeObjectPlacementAborted, eObjectPlacementSuccessfull);

TReal

TReal = Double;

TRectangleStyle

TRectangleStyle = (
    eRectangleHollow,
    eRectangleSolid
     );

TSchDropAction

TSchDropAction = (eDropAction_None,
                  eDropAction_AskOpenOrInsertText,
                  eDropAction_WarnBinaryAsText,
                  eDropAction_OpenInEditor,
                  eDropAction_OpenAsText,
                  eDropAction_Insert);

TSelectionState

TSelectionState  = (eSelectionState_None,
                    eSelectionState_FirstSelected,
                    eSelectionState_MultiSelected,
                    eSelectionState_VerticesSelected);

TSelectionMatch

TypeTSelectionMatch = (
    eMatchSelected,
    eMatchedNotSelected,
    eMatchAnySelection
     );

TSheetDocumentBorderStyle

TSheetDocumentBorderStyle = (
    eSheetStandard,
    eSheetAnsi
     );

TSheetOrientation

TSheetOrientation = (eLandscape, ePortrait);

TSheetStyle

TSheetStyle = (
    eSheetA4,
    eSheetA3,
    eSheetA2,
    eSheetA1,
    eSheetA0,
    eSheetA,
    eSheetB,
    eSheetC,
    eSheetD,
    eSheetE,
    eSheetLetter,
    eSheetLegal,
    eSheetTabloid,
    eSheetOrcadA,
    eSheetOrcadB,
    eSheetOrcadC,
    eSheetOrcadD,
    eSheetOrcadE
     );

TShowCutterMarkersMode

TShowCutterMarkersMode = (eMarkersNever, eMarkersAlways, eMarkersOnPolyline);

TShowCutterBoxMode

TShowCutterBoxMode     = (eBoxNever, eBoxAlways, eBoxOnPolyline);

TSide

TSide = (
    eLeft,
    eBottom,
    eRight,
    eTop
     );

TSize

TSize = (
    eZeroSize,
    eSmall,
    eMedium,
    eLarge
     );

TSignalLayer

TSignalLayer = (
    eNoSignalLayer,
    eTopSignalLayer,
    eMidSignalLayer1,
    eMidSignalLayer2,
    eMidSignalLayer3,
    eMidSignalLayer4,
    eMidSignalLayer5,
    eMidSignalLayer6,
    eMidSignalLayer7,
    eMidSignalLayer8,
    eMidSignalLayer9,
    eMidSignalLayer10,
    eMidSignalLayer11,
    eMidSignalLayer12,
    eMidSignalLayer13,
    eMidSignalLayer14,
    eBottomSignalLayer,
    eMultiSignalLayer,
    ePowerLayer1,
    ePowerLayer2,
    ePowerLayer3,
    ePowerLayer4
     );

TStdLogicState

TStdLogicState = (eStdLogic_Unitialized,
                  eStdLogic_ForcingUnknown,
                  eStdLogic_Forcing0,
                  eStdLogic_Forcing1,
                  eStdLogic_HiZ,
                  eStdLogic_WeakUnknown,
                  eStdLogic_Weak0,
                  eStdLogic_Weak1,
                  eStdLogic_DontCare);

TStringIncrementStyle

TStringIncrementStyle = (eSIS_None, eSIS_HorizontalFirst, eSIS_VerticalFirst);

TTextHorzAnchor

TTextHorzAnchor = (
       eTextHorzAnchor_None,
       eTextHorzAnchor_Both,
       eTextHorzAnchor_Left,
       eTextHorzAnchor_Right
       );

TTextJustification

TTextJustification = (
    eJustify_BottomLeft,
    eJustify_BottomCenter,
    eJustify_BottomRight,
    eJustify_CenterLeft,
    eJustify_Center,
    eJustify_CenterRight,
    eJustify_TopLeft,
    eJustify_TopCenter,
    eJustify_TopRight
    );

TTextVertAnchor

TTextVertAnchor = (
       eTextVertAnchor_None,
       eTextVertAnchor_Both,
       eTextVertAnchor_Top,
       eTextVertAnchor_Bottom
       );

TUpperLowerCase

TUpperLowerCase = (eUpperCase, eLowerCase, eAnyCase);

TUnit

TUnit = (eMil, eMM, eIN, eCM, eDXP, eM, eAutoImperial, eAutoMetric);

TUnitSet

TUnitSet = Set Of TUnit;

TUnitSystem

TUnitSystem = (eImperial, eMetric);

TVerticalAlign

TVerticalAlign = (
    eVerticalCentreAlign,
    eTopAlign,
    eBottomAlign
     );

TVisibleGrid

TVisibleGrid = (
    eDotGrid,
    eLineGrid
     );

TVHOrientation

THVOrientation = (
    eHorizontal,
    eVertical
     );

TWidthArray

TWidthArray = Array [TSize] of Integer;

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