Graphics: clear background : Graphics « 2D Graphics « VB.Net Tutorial






Graphics: clear background
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

public class GDIObjectsCreateGraphic
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class

Public Class Form1
    Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
        Dim canvas As Graphics = e.Graphics
        Dim colorBackground As Color = Color.Cornsilk
        canvas.Clear(colorBackground)
        
        canvas = Nothing
    End Sub
End Class


<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class Form1
    Inherits System.Windows.Forms.Form

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing AndAlso components IsNot Nothing Then
            components.Dispose()
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.SuspendLayout()
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(610, 328)
        Me.Name = "Form1"
        Me.Text = "Creating Graphics Objects (Color, Pen, Font, Brush)"
        Me.ResumeLayout(False)

    End Sub

End Class








17.40.Graphics
17.40.1.Create Graphics from HandleCreate Graphics from Handle
17.40.2.Create Graphics object from System.Windows.Forms.PaintEventArgsCreate Graphics object from System.Windows.Forms.PaintEventArgs
17.40.3.Graphics.DpiXGraphics.DpiX
17.40.4.Graphics: clear backgroundGraphics: clear background
17.40.5.Graphics.DrawArcGraphics.DrawArc
17.40.6.Graphics.DrawBeziersGraphics.DrawBeziers
17.40.7.Graphics.DrawClosedCurveGraphics.DrawClosedCurve
17.40.8.Graphics.DrawCurveGraphics.DrawCurve
17.40.9.Graphics.DrawEllipse MethodGraphics.DrawEllipse Method
17.40.10.Use Graphics.DrawEllipse to draw a circleUse Graphics.DrawEllipse to draw a circle
17.40.11.Graphics.DrawIconGraphics.DrawIcon
17.40.12.Graphics.DrawIconUnstretchedGraphics.DrawIconUnstretched
17.40.13.Graphics.DrawImageGraphics.DrawImage
17.40.14.Graphics.DrawLinesGraphics.DrawLines
17.40.15.Graphics.DrawPathGraphics.DrawPath
17.40.16.Graphics.DrawPieGraphics.DrawPie
17.40.17.Graphics.DrawPolygonGraphics.DrawPolygon
17.40.18.Graphics.DrawStringGraphics.DrawString
17.40.19.Graphics.ExcludeClipGraphics.ExcludeClip
17.40.20.Graphics.FillClosedCurveGraphics.FillClosedCurve
17.40.21.Graphics.FillEllipseGraphics.FillEllipse
17.40.22.Graphics.FillPathGraphics.FillPath
17.40.23.Graphics.FillPie 2Graphics.FillPie 2
17.40.24.Graphics.FillPolygon
17.40.25.Graphics.FillRectangleGraphics.FillRectangle
17.40.26.Graphics.FillRectanglesGraphics.FillRectangles
17.40.27.Graphics.IntersectClipGraphics.IntersectClip
17.40.28.Graphics.MeasureStringGraphics.MeasureString
17.40.29.Graphics.ReleaseHdcGraphics.ReleaseHdc
17.40.30.Graphics.ResetClipGraphics.ResetClip
17.40.31.Graphics.SetClipGraphics.SetClip