form1.vb

来自「Visual Basic .NET程序设计教程源代码」· VB 代码 · 共 117 行

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    '窗体重写 dispose 以清理组件列表。
    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

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意: 以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents PictureBox1 As System.Windows.Forms.PictureBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.PictureBox1 = New System.Windows.Forms.PictureBox
        Me.SuspendLayout()
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(32, 160)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "绘制"
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(184, 160)
        Me.Button2.Name = "Button2"
        Me.Button2.TabIndex = 1
        Me.Button2.Text = "退出"
        '
        'PictureBox1
        '
        Me.PictureBox1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.PictureBox1.Location = New System.Drawing.Point(16, 48)
        Me.PictureBox1.Name = "PictureBox1"
        Me.PictureBox1.Size = New System.Drawing.Size(264, 88)
        Me.PictureBox1.TabIndex = 2
        Me.PictureBox1.TabStop = False
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(292, 197)
        Me.Controls.Add(Me.PictureBox1)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Button1)
        Me.Name = "Form1"
        Me.Text = "一个简单的图形应用程序"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim g1 As Graphics
        Dim g2 As Graphics
        g1 = Me.CreateGraphics()
        g2 = PictureBox1.CreateGraphics

        Dim fntFont As Font
        fntFont = New Font("隶书", 20, FontStyle.Underline)
        Dim b As Brush
        b = New SolidBrush(Color.Green)
        Dim p As Pen
        p = New Pen(Color.Blue)

        g1.DrawString("你好，GDI+！", fntFont, b, 0, 10)
        g2.DrawEllipse(p, 0, 0, 50, 50)
        g2.DrawRectangle(p, 65, 0, 20, 20)
        g2.DrawIcon(Me.Icon, 90, 20)

        Dim pntPoint(2) As Point
        pntPoint(0).X = 120
        pntPoint(0).Y = 10
        pntPoint(1).X = 170
        pntPoint(1).Y = 10
        pntPoint(2).X = 150
        pntPoint(2).Y = 50
        g2.FillPolygon(b, pntPoint)

        fntFont.Dispose()
        b.Dispose()
        p.Dispose()
        g1.Dispose()
        g2.Dispose()
    End Sub

    Private Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
        End
    End Sub
End Class