form1.vb

Visual.Basic.NET实用编程百例-47.6M.zip

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()
        '此调用是 Windows 窗体设计器所必需的。
        InitializeComponent()
    End Sub
    '窗体重写处置，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
    Public ToolTip1 As System.Windows.Forms.ToolTip
    Public WithEvents Text2 As System.Windows.Forms.TextBox
    Public WithEvents List1 As System.Windows.Forms.ListBox
    Public WithEvents Text1 As System.Windows.Forms.TextBox
    Public WithEvents Label2 As System.Windows.Forms.Label
    Public WithEvents Label1 As System.Windows.Forms.Label
    '注意：以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器来修改它。
    '不要使用代码编辑器来修改它。
    Public WithEvents Button2 As System.Windows.Forms.Button
    Public WithEvents Button1 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container
        Me.ToolTip1 = New System.Windows.Forms.ToolTip(Me.components)
        Me.Button2 = New System.Windows.Forms.Button
        Me.Text2 = New System.Windows.Forms.TextBox
        Me.List1 = New System.Windows.Forms.ListBox
        Me.Text1 = New System.Windows.Forms.TextBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.Label2 = New System.Windows.Forms.Label
        Me.Label1 = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'Button2
        '
        Me.Button2.BackColor = System.Drawing.SystemColors.Control
        Me.Button2.Cursor = System.Windows.Forms.Cursors.Default
        Me.Button2.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Button2.Location = New System.Drawing.Point(192, 168)
        Me.Button2.Name = "Button2"
        Me.Button2.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Button2.Size = New System.Drawing.Size(70, 25)
        Me.Button2.TabIndex = 6
        Me.Button2.Text = "退出程序"
        '
        'Text2
        '
        Me.Text2.AcceptsReturn = True
        Me.Text2.AutoSize = False
        Me.Text2.BackColor = System.Drawing.SystemColors.Window
        Me.Text2.Cursor = System.Windows.Forms.Cursors.IBeam
        Me.Text2.ForeColor = System.Drawing.SystemColors.WindowText
        Me.Text2.Location = New System.Drawing.Point(272, 8)
        Me.Text2.MaxLength = 0
        Me.Text2.Name = "Text2"
        Me.Text2.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Text2.Size = New System.Drawing.Size(133, 24)
        Me.Text2.TabIndex = 4
        Me.Text2.Text = ""
        '
        'List1
        '
        Me.List1.BackColor = System.Drawing.SystemColors.Window
        Me.List1.Cursor = System.Windows.Forms.Cursors.Default
        Me.List1.ForeColor = System.Drawing.SystemColors.WindowText
        Me.List1.ItemHeight = 12
        Me.List1.Location = New System.Drawing.Point(4, 40)
        Me.List1.Name = "List1"
        Me.List1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.List1.Size = New System.Drawing.Size(404, 112)
        Me.List1.TabIndex = 3
        '
        'Text1
        '
        Me.Text1.AcceptsReturn = True
        Me.Text1.AutoSize = False
        Me.Text1.BackColor = System.Drawing.SystemColors.Window
        Me.Text1.Cursor = System.Windows.Forms.Cursors.IBeam
        Me.Text1.ForeColor = System.Drawing.SystemColors.WindowText
        Me.Text1.Location = New System.Drawing.Point(64, 8)
        Me.Text1.MaxLength = 0
        Me.Text1.Name = "Text1"
        Me.Text1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Text1.Size = New System.Drawing.Size(133, 24)
        Me.Text1.TabIndex = 1
        Me.Text1.Text = ""
        '
        'Button1
        '
        Me.Button1.BackColor = System.Drawing.SystemColors.Control
        Me.Button1.Cursor = System.Windows.Forms.Cursors.Default
        Me.Button1.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Button1.Location = New System.Drawing.Point(104, 168)
        Me.Button1.Name = "Button1"
        Me.Button1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Button1.Size = New System.Drawing.Size(70, 25)
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "开始Ping"
        '
        'Label2
        '
        Me.Label2.AutoSize = True
        Me.Label2.BackColor = System.Drawing.Color.Transparent
        Me.Label2.Cursor = System.Windows.Forms.Cursors.Default
        Me.Label2.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Label2.Location = New System.Drawing.Point(232, 16)
        Me.Label2.Name = "Label2"
        Me.Label2.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Label2.Size = New System.Drawing.Size(42, 17)
        Me.Label2.TabIndex = 5
        Me.Label2.Text = "次数："
        '
        'Label1
        '
        Me.Label1.AutoSize = True
        Me.Label1.BackColor = System.Drawing.Color.Transparent
        Me.Label1.Cursor = System.Windows.Forms.Cursors.Default
        Me.Label1.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Label1.Location = New System.Drawing.Point(8, 16)
        Me.Label1.Name = "Label1"
        Me.Label1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Label1.Size = New System.Drawing.Size(54, 17)
        Me.Label1.TabIndex = 2
        Me.Label1.Text = "Ip地址："
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(416, 211)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Text2)
        Me.Controls.Add(Me.List1)
        Me.Controls.Add(Me.Text1)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Location = New System.Drawing.Point(4, 24)
        Me.Name = "Form1"
        Me.Text = "Ping一个IP地址"
        Me.ResumeLayout(False)

    End Sub
#End Region


    Private Sub Button1_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Button1.Click
        Dim i As Object
        Dim ECHO As ICMP_ECHO_REPLY
        Dim pos As Short

        If Not IsNumeric(Trim(Text2.Text)) Then
            Text2.Text = CStr(1)
        End If

        For i = 1 To CInt(Text2.Text)
            Ping((Text1.Text), ECHO)
            List1.Items.Add("Reply from " & Text1.Text & ": Time = " & ECHO.RoundTripTime & "ms," & " TTL= " & ECHO.Options.Ttl & ", Size= " & ECHO.DataSize & " bytes.")
        Next i
    End Sub

    Private Sub Button2_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Button2.Click
        End
    End Sub

    Private Sub Form1_Load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load
        SocketsInitialize()
    End Sub

    Private Sub Form1_Closed(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Closed
        SocketsCleanup()
    End Sub
End Class