VB.Net Tutorial/2D Graphics/Gradient

Материал из VB Эксперт
Версия от 15:54, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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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
  1. 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
  1. 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>