VB.Net Tutorial/2D Graphics/Gradient
Draw ellipse filled with a blue-yellow gradient
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class LinearBrushDemo
public Shared Sub Main Application.Run(New FrmDrawShapes) End Sub
End class Public Class FrmDrawShapes
Inherits System.Windows.Forms.Form
- Region " Windows Form Designer generated code "
Public Sub New() MyBase.New() "This call is required by the Windows Form Designer. InitializeComponent() "Add any initialization after the InitializeComponent() call End Sub "Form overrides dispose to clean up the component list. Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is Nothing) Then components.Dispose() End If End If MyBase.Dispose(disposing) End Sub "Required by the Windows Form Designer Private components As System.ruponentModel.Container "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() " "frmDrawShapes " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(520, 197) Me.Name = "frmDrawShapes" Me.Text = "Drawing Shapes" End Sub
- End Region
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs) Dim graphicsObject As Graphics = e.Graphics Dim drawArea1 As Rectangle = New Rectangle(5, 35, 30, 100) Dim linearBrush As LinearGradientBrush = _ New LinearGradientBrush(drawArea1, Color.Blue, _ Color.Yellow, LinearGradientMode.ForwardDiagonal) graphicsObject.FillEllipse(linearBrush, 5, 30, 65, 100) End Sub
End Class</source>