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Navigation: Code Documentation > RSVML > RSGdiPlusGraphics > Classes

TRSGPBrush Class

Encapsulates a GDI+ brush class. A Brush object is used to paint the interior of graphics shapes, such as rectangles, ellipses, pies, polygons, and paths.

Unlike most Delphi wrappers of GDI+, the TRSGPBrush class mimics the FMX TBrush class as closely as possible. You do not create TextureBrush or PathGradientBrush, you create a TRSGPBrush and change its Kind property.

Namespace: RSGdiPlusGraphics

	Name	Description
	Create(TRSGPCanvas)	Overloaded. Constructs the graphics object. Specify the canvas that owns the graphics object. (Overrides RSGdiPlusGraphics.TRSGPGraphicsObject.Create(TRSGPCanvas).)
	Create(TRSGPCanvas,TRSGPBrushKind,TRSGPColor)	Overloaded. Create a brush with a default kind and color.
	Destroy	Represents the destructor of the TRSGPBrush class. (Overrides RSGdiPlusGraphics.TRSGPGraphicsObject.Destroy.)

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Name

Description

published property

BackColor

Specifies the background color of a hatch fill brush. The background color defines the color over which the hatch lines are drawn.

public property

Bitmap

Specifies the image to use when the Kind is bkBitmap, which is a textured or patterned brush filled from a bitmap.

A texture brush paints an image. The image or texture is either a portion of a specified image or a scaled version of a specified image. The type of image (metafile or nonmetafile) determines whether the texture is a portion of the image or a scaled version of the image.

Note
To properly use the Bitmap property, you must set the Kind property to bkBitmap.

public property

BitmapSrcRect

Defines the size of the bitmap texture brush and the portion of the image to be used. If the Image object is created from a metafile, the brush uses the entire image, which is scaled to fit the size of the brush.

published property

Color

Specifies the color of the brush when the brush kind is bkSolid or foreground color when brush kind is bkHatchFill

Note
To properly use the Color property, you must set the Kind property to bkSolid or bkHatchFill.

public property

DefaultColor

Defines the default color of the brush. The brush object uses the DefaultColor property to determine whether the color of the brush is stored when streaming.

public property

DefaultKind

Defines the default kind of the brush. The brush object uses the DefaultKind property to determine whether the Kind of the brush is stored when streaming.

published property

Gradient

Specifies the gradient style and colors for the brush.

The Gradient property specifies the gradient style and the gradient colors for the TRSGPBrush object.

Note
To properly use the Gradient property, you must set the Kind property to bkGradient.

public property

Handle

Handle of the graphics object, used by the MS GDI+ flat API routines (Inherited from RSGdiPlusGraphics.TRSGPGraphicsObject.)

published property

HatchStyle

Specifies the hatch style of the hatch brush.

Note
To properly use the HatchStyle property, you must set the Kind property to bkHatchFill.

published property

Kind

Determines the pattern for the brush.

Use Kind to specify the pattern painted by the brush. Kind can have one of the following values:

bkBitmap

The brush's pattern is defined by an external bitmap image.

bkGradient

The brush's pattern is a gradient and you can set the gradient type and colors.

bkNone

The brush has no pattern. The fill of the object is transparent and the Color property has no effect.

bkSolid

The brush's pattern is a solid color, which you can set by using the Color property.

bkHatchFill

The brush's pattern is a hatch fill. The brush defines a rectangular brush with a hatch style, a foreground color, and a background color. There are six hatch styles. The foreground color defines the color of the hatch lines; the background color defines the color over which the hatch lines are drawn.

public property

Matrix

Specifies the transformation matrix for the brush. The transformation matrix only applies to bkBitmap and bkGradient.

public property

OnChange

Occurs when the graphics object changes.

Note
There are two events that are exactly the same, OnChanged and OnChange. The extra event name is to allow easier transition from other Delphi libraries, either the VCL (OnChanged) or FMX (OnChange) libraries. Use either one as needed. Only one event is triggered.

public property

OnChanged

Occurs when the graphics object changes.

Note
There are two events that are exactly the same, OnChanged and OnChange. The extra event name is to allow easier transition from other Delphi libraries, either the VCL (OnChanged) or FMX (OnChange) libraries. Use either one as needed. Only one event is triggered.

public property

Owner

Canvas that owns the object. The Canvas will free this graphics object if it is destroyed. However, to keep memory use under control, it is recommended that you free graphics objects when you are finished with them. (Inherited from RSGdiPlusGraphics.TRSGPGraphicsObject.)

published property

WrapMode

Specifies how repeated copies of the Bitmap image property are used to tile an area when it is painted.

Note
To properly use the WrapMode property, you must set the Kind property to bkBitmap.

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	Name	Description
	Assign(TPersistent)	Overloaded. Represents method Assign(TPersistent).
	Changed	Call this method when the graphics object changes. It triggers an OnChange event. (Inherited from RSGdiPlusGraphics.TRSGPGraphicsObject.)
	Clone	Creates a copy of the graphics object (Inherited from RSGdiPlusGraphics.TRSGPGraphicsObject.)
	GetHandle	Call this method to acquire a handle from the GDI+ flat API library (Overrides RSGdiPlusGraphics.TRSGPGraphicsObject.GetHandle.)
	Notification(TRSGPCanvas)	Called when the Canvas is releasing control of the graphics object. The canvas will no longer be responsible for freeing the graphics object. (Inherited from RSGdiPlusGraphics.TRSGPGraphicsObject.)
	ObjectChanged(TObject)	Represents method ObjectChanged(TObject).
	Prepare(TRectF,Single)	Prepare the graphics object for drawing. Graphics objects respond in this method to upcoming calls. For example, gradient brushes can make sure the gradient will cover the entire rectangle. (Overrides RSGdiPlusGraphics.TRSGPGraphicsObject.Prepare(TRectF,Single).)
	QueryInterface(TGUID,Void)	Represents method QueryInterface(TGUID,Void). (Inherited from RSGdiPlusGraphics.TRSGPGraphicsObject.)
	ReleaseHandle	Releases the underlying GDI+ object back to the GDI+ library. (Overrides RSGdiPlusGraphics.TRSGPGraphicsObject.ReleaseHandle.)
	SetKind(TRSGPBrushKind)	Represents method SetKind(TRSGPBrushKind).
	Update	Update native graphics object (Overrides RSGdiPlusGraphics.TRSGPGraphicsObject.Update.)
	_AddRef	Represents method _AddRef. (Inherited from RSGdiPlusGraphics.TRSGPGraphicsObject.)
	_Release	Represents method _Release. (Inherited from RSGdiPlusGraphics.TRSGPGraphicsObject.)

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