vb System.Drawing.Rectangle类(方法)实例源码

' 导入命名空间
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

public class CreateRectangleFromSizeAndPoint
   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)
        Dim g As Graphics = Me.CreateGraphics()
        Dim x As Integer = 40
        Dim y As Integer = 40
        Dim height As Integer = 120
        Dim width As Integer = 120

        Dim pt As New Point(80, 80)

        Dim sz As New Size(100, 100)

        Dim rect1 As New Rectangle(pt, sz)

        Dim redPen As New Pen(Color.Red, 2)

        g.DrawRectangle(redPen, rect1)

        redPen.Dispose()
        g.Dispose()

  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

' 导入命名空间
Imports System
Imports System.Windows.Forms
Imports System.Drawing


Public Class MainClass

  Shared Sub Main()
     Dim form1 As Form1 = new Form1
     Application.Run(form1)
  End Sub
  
End Class

Public Class Form1
    Inherits System.Windows.Forms.Form

    Public Sub New()
        MyBase.New()
        Me.ClientSize = New System.Drawing.Size(292, 273)
    End Sub

  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
    Dim G As Graphics = e.Graphics
    G.Clear(Color.BurlyWood)
    Dim r As Rectangle = New Rectangle(50, 50, 100, 100)
    Dim b As Brush = Brushes.Crimson
    G.FillRectangle(b, r)

  End Sub

End Class