password.vb

这是一本用Visual Studio.NET进行多媒体编程的读物

Option Strict Off
Option Explicit On
Friend Class password
	Inherits System.Windows.Forms.Form
#Region "Windows 窗体设计器生成的代码"
	Public Sub New()
		MyBase.New()
		If m_vb6FormDefInstance Is Nothing Then
			If m_InitializingDefInstance Then
				m_vb6FormDefInstance = Me
			Else
				Try 
					'对于启动窗体，所创建的第一个实例为默认实例。
					If System.Reflection.Assembly.GetExecutingAssembly.EntryPoint.DeclaringType Is Me.GetType Then
						m_vb6FormDefInstance = Me
					End If
				Catch
				End Try
			End If
		End If
		'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 Command2 As System.Windows.Forms.Button
	Public WithEvents Command1 As System.Windows.Forms.Button
	Public WithEvents Text1 As System.Windows.Forms.TextBox
	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。
	<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container()
        Me.ToolTip1 = New System.Windows.Forms.ToolTip(Me.components)
        Me.Command2 = New System.Windows.Forms.Button()
        Me.Command1 = New System.Windows.Forms.Button()
        Me.Text1 = New System.Windows.Forms.TextBox()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.SuspendLayout()
        '
        'Command2
        '
        Me.Command2.BackColor = System.Drawing.SystemColors.Control
        Me.Command2.Cursor = System.Windows.Forms.Cursors.Default
        Me.Command2.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Command2.Location = New System.Drawing.Point(104, 72)
        Me.Command2.Name = "Command2"
        Me.Command2.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Command2.Size = New System.Drawing.Size(49, 25)
        Me.Command2.TabIndex = 3
        Me.Command2.Text = "退出"
        '
        'Command1
        '
        Me.Command1.BackColor = System.Drawing.SystemColors.Control
        Me.Command1.Cursor = System.Windows.Forms.Cursors.Default
        Me.Command1.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Command1.Location = New System.Drawing.Point(24, 72)
        Me.Command1.Name = "Command1"
        Me.Command1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Command1.Size = New System.Drawing.Size(49, 25)
        Me.Command1.TabIndex = 2
        Me.Command1.Text = "确认"
        '
        '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(40, 24)
        Me.Text1.MaxLength = 0
        Me.Text1.Name = "Text1"
        Me.Text1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Text1.Size = New System.Drawing.Size(121, 25)
        Me.Text1.TabIndex = 1
        Me.Text1.Text = ""
        '
        'Label1
        '
        Me.Label1.BackColor = System.Drawing.SystemColors.Control
        Me.Label1.Cursor = System.Windows.Forms.Cursors.Default
        Me.Label1.ForeColor = System.Drawing.SystemColors.ControlText
        Me.Label1.Location = New System.Drawing.Point(16, 8)
        Me.Label1.Name = "Label1"
        Me.Label1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Label1.Size = New System.Drawing.Size(65, 17)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "请输入密码"
        '
        'password
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(176, 134)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Command2, Me.Command1, Me.Text1, Me.Label1})
        Me.Location = New System.Drawing.Point(4, 24)
        Me.Name = "password"
        Me.Text = "password"
        Me.ResumeLayout(False)

    End Sub
#End Region 
#Region "升级支持"
	Private Shared m_vb6FormDefInstance As password
	Private Shared m_InitializingDefInstance As Boolean
	Public Shared Property DefInstance() As password
		Get
			If m_vb6FormDefInstance Is Nothing OrElse m_vb6FormDefInstance.IsDisposed Then
				m_InitializingDefInstance = True
				m_vb6FormDefInstance = New password()
				m_InitializingDefInstance = False
			End If
			DefInstance = m_vb6FormDefInstance
		End Get
		Set
			m_vb6FormDefInstance = Value
		End Set
	End Property
#End Region 
	Private Sub Command1_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Command1.Click
		Dim pa As Object
		Dim Password As Short
        On Error GoTo ErrHandler
        pa = Text1.Text
        If pa = "zhhg00" Then
            'Load(Form1) '加载的 Form 对象
            Form1.DefInstance.Show() '显示Form1对象
        Else
            Password = MsgBox("密码不正确,请重新输入")
            Text1.Text = ""
        End If
        Exit Sub

ErrHandler:
        MsgBox(Err.Description)
	End Sub
	
	Private Sub Command2_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Command2.Click
		Form1.DefInstance.Close()
		End
	End Sub
	Private Sub Text1_KeyPress(ByVal eventSender As System.Object, ByVal eventArgs As System.Windows.Forms.KeyPressEventArgs) Handles Text1.KeyPress
		Dim KeyAscii As Short = Asc(eventArgs.KeyChar)
		If KeyAscii = 13 Then
			Command1_Click(Command1, New System.EventArgs())
		End If
		GoTo EventExitSub
EventExitSub: 
		If KeyAscii = 0 Then
			eventArgs.Handled = True
		End If
	End Sub

    
    Private Sub password_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class