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Navigation: Code Documentation > RSVML > RSGdiPlusCtrls > Classes

TRSGPArc Class

TRSGPArc defines 2D arcs. TRSGPArc is drawn as part of TRSGPEllipse's contour.

The TRSGPArc object is the part of the TRSGPEllipse's contour enclosed between radiuses with the StartAngle and RSGdiPlusCtrls.TRSGPArc.EndAngle angles.

To define the general size, shape, and position of TArc, use the ShapeRect bounding rectangle, the scaling factors specified by Scale, the RotationCenter rotation axis, and the RotationAngle rotation angle of the TEllipse object.

TArc draws the contour and fills the shape background with the Paint method. The Paint method draws the TArc contour using the drawing pen having the Stroke, StrokeThickness, StrokeCap, StrokeDash, and StrokeJoin properties of the TArc object.

Namespace: RSGdiPlusCtrls

Name

Description

public property

AbsoluteMatrix

Specifies the absolute transformation matrix of the control. AbsoluteMatrix is calculated using Matrix and AbsoluteMatrix of its parent
(Inherited from RSGdiPlusCtrls.TRSGPShape.)

published property

Align

Represents property Align. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

Anchors

Represents property Anchors. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

public property

Canvas

Represents property Canvas. (Inherited from RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.)

published property

ClipChildren

Represents property ClipChildren. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

Constraints

Represents property Constraints. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

Cursor

Represents property Cursor. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

DragCursor

Represents property DragCursor. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

DragKind

Represents property DragKind. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

DragMode

Represents property DragMode. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

EndAngle

Specifies the end angle for this arc object. The EndAngle end angle is measured clockwise from the StartAngle start angle.

Use EndAngle in conjunction with StartAngle to specify how to draw this arc.

Note
Notice that RotationAngle rotates the x-axis.

published property

Fill

Represents property Fill. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

public property

InterceptMouse

Determines whether mouse clicks should be detected for the control (Inherited from RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.)

public property

Matrix

Specifies the local transformation matrix of the control (Inherited from RSGdiPlusCtrls.TRSGPShape.)

published property

OnClick

Represents property OnClick. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnContextPopup

Represents property OnContextPopup. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnDblClick

Represents property OnDblClick. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnDragDrop

Represents property OnDragDrop. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnDragOver

Represents property OnDragOver. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnEndDock

Represents property OnEndDock. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnEndDrag

Represents property OnEndDrag. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnGesture

Represents property OnGesture. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnMouseActivate

Represents property OnMouseActivate. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnMouseDown

Represents property OnMouseDown. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnMouseEnter

Represents property OnMouseEnter. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnMouseLeave

Represents property OnMouseLeave. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnMouseMove

Represents property OnMouseMove. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnMouseUp

Represents property OnMouseUp. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnPaint

Represents property OnPaint. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnPainting

Represents property OnPainting. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnStartDock

Represents property OnStartDock. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

OnStartDrag

Represents property OnStartDrag. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

Opacity

Represents property Opacity. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

ParentShowHint

Represents property ParentShowHint. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

PopupMenu

Represents property PopupMenu. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

public property

ShapeRect

Returns the rectangle for drawing the shape.

The coordinates of the upper-left corner of the rectangle are (0,0), and the coordinates of the lower-right corner are (Width, Height).
(Inherited from RSGdiPlusCtrls.TRSGPShape.)

published property

ShowHint

Represents property ShowHint. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

StartAngle

Specifies the start angle for this arc object. The StartAngle start angle is measured clockwise from the x-axis.

Use StartAngle in conjunction with RSGdiPlusCtrls.TRSGPArc.EndAngle to specify how to draw this arc.

Note
Notice that RotationAngle rotates the x-axis.

published property

Stroke

Represents property Stroke. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

Touch

Represents property Touch. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

Transform

Represents property Transform. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

published property

Visible

Represents property Visible. (Inherited from RSGdiPlusCtrls.TRSGPEllipse.)

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	Name	Description
	CreateGdiPCanvas	Creates a GDI+ canvas for the control. The calling routine is responsible for freeing the GDI+ canvas (Inherited from RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.)
	DoPaint	Override this method to paint the control (Overrides RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.DoPaint.)
	DoPainted	Occurs just after painting. Calls the OnPaint event (Inherited from RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.)
	DoPainting	Occurs just before painting. Calls the OnPainting event (Inherited from RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.)
	GetAbsoluteMatrix	Returns the absolute transformation matrix of the control. AbsoluteMatrix is calculated using Matrix and AbsoluteMatrix of its parent (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	GetMatrix	Returns the local transformation matrix of the control (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	GetOpacity	Returns the control opacity. (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	GetShapeRectForRot(TObject,TRSRect)	Represents method GetShapeRectForRot(TObject,TRSRect). (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	ObjectChanged(TObject)	Represents method ObjectChanged(TObject). (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	Paint(TRSGPCanvas,TRSGPMatrix,Single)	Represents method Paint(TRSGPCanvas,TRSGPMatrix,Single). (Overrides RSGdiPlusCtrls.TRSGPEllipse.Paint(TRSGPCanvas,TRSGPMatrix,Single).)
	PointInObject(Integer,Integer)	Overloaded. Checks whether the point, specified by the absolute coordinates, belongs to the control area. PointInObject returns True if the specified point belongs to the control area, and False otherwise. The X and Y are the absolute coordinates (relative to the main form) of the point to be checked. The points of the control boundary specified by BoundsRect belong to the control and PointInObject returns True for them.
	PointInObject(Single,Single)	Checks whether the point, specified by the absolute coordinates, belongs to the control area. PointInObject returns True if the specified point belongs to the control area, and False otherwise. The X and Y are the absolute coordinates (relative to the main form) of the point to be checked. The points of the control boundary specified by BoundsRect belong to the control and PointInObject returns True for them.
	SetOpacity(Single)	Sets the control opacity. Set Opacity to customize the transparency of the current control. Opacity takes values between 0 and 1. If Opacity is 1, the control is completely opaque; if it is 0, the control is completely transparent. The values over 1 are treated as 1, and the ones under 0 are treated as 0. Opacity applies to the control's children.

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