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Class VBECanvas

VBECanvas class. Used to control screen, by VBE (VESA BIOS Extensions) standard. See also: Canvas.

Inheritance
System.Object
Canvas
VBECanvas
Inherited Members
Canvas.Clear()
Canvas.DrawPoint(Pen, Point)
Canvas.DrawArray(Color[], Point, Int32, Int32)
Canvas.DrawLine(Pen, Int32, Int32, Int32, Int32)
Canvas.DrawLine(Pen, Point, Point)
Canvas.DrawLine(Pen, Single, Single, Single, Single)
Canvas.DrawCircle(Pen, Int32, Int32, Int32)
Canvas.DrawCircle(Pen, Point, Int32)
Canvas.DrawFilledCircle(Pen, Int32, Int32, Int32)
Canvas.DrawFilledCircle(Pen, Point, Int32)
Canvas.DrawEllipse(Pen, Int32, Int32, Int32, Int32)
Canvas.DrawEllipse(Pen, Point, Int32, Int32)
Canvas.DrawFilledEllipse(Pen, Point, Int32, Int32)
Canvas.DrawFilledEllipse(Pen, Int32, Int32, Int32, Int32)
Canvas.DrawPolygon(Pen, Point[])
Canvas.DrawSquare(Pen, Point, Int32)
Canvas.DrawSquare(Pen, Int32, Int32, Int32)
Canvas.DrawRectangle(Pen, Point, Int32, Int32)
Canvas.DrawRectangle(Pen, Int32, Int32, Int32, Int32)
Canvas.DrawFilledRectangle(Pen, Point, Int32, Int32)
Canvas.DrawTriangle(Pen, Point, Point, Point)
Canvas.DrawTriangle(Pen, Int32, Int32, Int32, Int32, Int32, Int32)
Canvas.DrawRectangle(Pen, Single, Single, Single, Single)
Canvas.DrawImage(Image, Int32, Int32, Int32, Int32)
Canvas.DrawImageAlpha(Image, Int32, Int32)
Canvas.DrawImage(Image, Point)
Canvas.DrawImageAlpha(Image, Point)
Canvas.DrawString(String, Font, Pen, Point)
Canvas.DrawString(String, Font, Pen, Int32, Int32)
Canvas.DrawChar(Char, Font, Pen, Point)
Canvas.DrawChar(Char, Font, Pen, Int32, Int32)
Canvas.CheckIfModeIsValid(Mode)
Canvas.ThrowIfModeIsNotValid(Mode)
Canvas.ThrowIfCoordNotValid(Point)
Canvas.ThrowIfCoordNotValid(Int32, Int32)
Canvas.TrimLine(Int32, Int32, Int32, Int32)
Canvas.AlphaBlend(Color, Color, Byte)
Namespace: Cosmos.System.Graphics
Assembly: Cosmos.System2.dll
Syntax
public class VBECanvas : Canvas

Constructors

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VBECanvas()

Create new instance of the class.

Declaration
public VBECanvas()
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VBECanvas(Mode)

Create new instance of the class.

Declaration
public VBECanvas(Mode aMode)
Parameters
Type Name Description
Mode aMode

Properties

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AvailableModes

Available VBE supported video modes.

Low res:

HD:

HDR:

HDTV:

Declaration
public override List<Mode> AvailableModes { get; }
Property Value
Type Description
List<Mode>
Overrides
Canvas.AvailableModes
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DefaultGraphicMode

Override Canvas default graphics mode.

Declaration
public override Mode DefaultGraphicMode { get; }
Property Value
Type Description
Mode
Overrides
Canvas.DefaultGraphicMode
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Mode

Get and set video mode.

Declaration
public override Mode Mode { get; set; }
Property Value
Type Description
Mode
Overrides
Canvas.Mode

Methods

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Clear(Color)

Clear screen to specified color.

Declaration
public override void Clear(Color aColor)
Parameters
Type Name Description
Color aColor
Overrides
Canvas.Clear(Color)
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Disable()

Disables VBE Graphics mode, parent method returns to VGA text mode (80x25)

Declaration
public override void Disable()
Overrides
Canvas.Disable()
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Display()

Declaration
public override void Display()
Overrides
Canvas.Display()
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DrawArray(Color[], Int32, Int32, Int32, Int32)

Draw array of colors.

Declaration
public override void DrawArray(Color[] aColors, int aX, int aY, int aWidth, int aHeight)
Parameters
Type Name Description
Color[] aColors

Colors array.

System.Int32 aX

X coordinate.

System.Int32 aY

Y coordinate.

System.Int32 aWidth

Width.

System.Int32 aHeight

unused.

Overrides
Canvas.DrawArray(Color[], Int32, Int32, Int32, Int32)
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DrawFilledRectangle(Pen, Int32, Int32, Int32, Int32)

Draw filled rectangle.

Declaration
public override void DrawFilledRectangle(Pen aPen, int aX, int aY, int aWidth, int aHeight)
Parameters
Type Name Description
Pen aPen

Pen to draw with.

System.Int32 aX

X coordinate.

System.Int32 aY

Y coordinate.

System.Int32 aWidth

Width.

System.Int32 aHeight

Height.

Overrides
Canvas.DrawFilledRectangle(Pen, Int32, Int32, Int32, Int32)
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DrawImage(Image, Int32, Int32)

Draw image.

Declaration
public override void DrawImage(Image aImage, int aX, int aY)
Parameters
Type Name Description
Image aImage

Image.

System.Int32 aX

X coordinate.

System.Int32 aY

Y coordinate.

Overrides
Canvas.DrawImage(Image, Int32, Int32)
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DrawPoint(Pen, Int32, Int32)

Draw point to the screen.

Declaration
public override void DrawPoint(Pen aPen, int aX, int aY)
Parameters
Type Name Description
Pen aPen

Pen to draw the point with.

System.Int32 aX

X coordinate.

System.Int32 aY

Y coordinate.

Overrides
Canvas.DrawPoint(Pen, Int32, Int32)
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DrawPoint(Pen, Single, Single)

Draw point to the screen. Not implemented.

Declaration
public override void DrawPoint(Pen aPen, float aX, float aY)
Parameters
Type Name Description
Pen aPen

Pen to draw the point with.

System.Single aX

X coordinate.

System.Single aY

Y coordinate.

Overrides
Canvas.DrawPoint(Pen, Single, Single)
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GetPointColor(Int32, Int32)

Get point color.

Declaration
public override Color GetPointColor(int aX, int aY)
Parameters
Type Name Description
System.Int32 aX

X coordinate.

System.Int32 aY

Y coordinate.

Returns
Type Description
Color

Color value.

Overrides
Canvas.GetPointColor(Int32, Int32)
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