Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    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
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Timer1 As System.Windows.Forms.Timer
    Private components As System.ComponentModel.IContainer

    'Required by the Windows Form Designer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
        Me.SuspendLayout()
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(80, 40)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.PasswordChar = ChrW(42)
        Me.TextBox1.Size = New System.Drawing.Size(200, 20)
        Me.TextBox1.TabIndex = 0
        Me.TextBox1.Text = ""
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(80, 24)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(208, 16)
        Me.Label1.TabIndex = 1
        Me.Label1.Text = "Enter your password within 15 seconds"
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(136, 72)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(88, 24)
        Me.Button1.TabIndex = 2
        Me.Button1.Text = "Try Password"
        '
        'Timer1
        '
        Me.Timer1.Enabled = True
        Me.Timer1.Interval = 15000
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(360, 109)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1, Me.Label1, Me.TextBox1})
        Me.Name = "Form1"
        Me.Text = "Password"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        MsgBox("Sorry, your time is up.")
        End
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If TextBox1.Text = "secret" Then
            Timer1.Enabled = False
            MsgBox("Welcome to the system!")
            End
        Else
            MsgBox("Sorry, friend, I don’t know you.")
        End If
    End Sub
End Class
