VB.Net Tutorial/2D Graphics/Arrow — различия между версиями

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Текущая версия на 15:55, 26 мая 2010

Draw Arrow

<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class DrawArrow

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

End class public class Form1

 Inherits System.Windows.Forms.Form
 Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
       e.Graphics.ScaleTransform(30, 30, MatrixOrder.Append)
       DrawArrow(e.Graphics, HatchStyle.Horizontal)
   End Sub
   Private Sub DrawArrow(ByVal gr As Graphics, ByVal hatch_style As HatchStyle)
       Dim pts() As Point = { _
           New Point(0, 1), _
           New Point(2, 1), _
           New Point(2, 0), _
           New Point(4, 2), _
           New Point(2, 4), _
           New Point(2, 3), _
           New Point(0, 3) _
       }
       gr.FillPolygon(New HatchBrush(hatch_style, Color.Black, Color.White), pts)
       gr.DrawPolygon(New Pen(Color.Black, 0), pts)
   End Sub
 Public Sub New()
   MyBase.New()
   Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
   Me.ClientSize = New System.Drawing.Size(292, 273)
   Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
 End Sub

End Class</source>