vbAccelerator - Contents of code file: CRC32VB_Form1.vb

Imports System.IO
Imports System.Security.Cryptography
Imports System.Text

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

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    '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.
    Friend WithEvents btnPick As System.Windows.Forms.Button
    Friend WithEvents lblFilename As System.Windows.Forms.Label
    Friend WithEvents txtFileName As System.Windows.Forms.TextBox
    Friend WithEvents gbxResults As System.Windows.Forms.GroupBox
    Friend WithEvents txtSize As System.Windows.Forms.TextBox
    Friend WithEvents lblSize As System.Windows.Forms.Label
    Friend WithEvents txtTime As System.Windows.Forms.TextBox
    Friend WithEvents lblTime As System.Windows.Forms.Label
    Friend WithEvents txtCrc32 As System.Windows.Forms.TextBox
    Friend WithEvents lblCrc32 As System.Windows.Forms.Label
    Friend WithEvents btnCrc As System.Windows.Forms.Button
    Friend WithEvents txtSHA1Time As System.Windows.Forms.TextBox
    Friend WithEvents lblSHA1Time As System.Windows.Forms.Label
    Friend WithEvents txtMD5Time As System.Windows.Forms.TextBox
    Friend WithEvents lblMD5Time As System.Windows.Forms.Label
    Friend WithEvents txtSHA1 As System.Windows.Forms.TextBox
    Friend WithEvents lblSHA1 As System.Windows.Forms.Label
    Friend WithEvents txtMD5 As System.Windows.Forms.TextBox
    Friend WithEvents lblMD5 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.btnPick = New System.Windows.Forms.Button()
        Me.lblFilename = New System.Windows.Forms.Label()
        Me.btnCrc = New System.Windows.Forms.Button()
        Me.txtFileName = New System.Windows.Forms.TextBox()
        Me.gbxResults = New System.Windows.Forms.GroupBox()
        Me.txtSize = New System.Windows.Forms.TextBox()
        Me.lblSize = New System.Windows.Forms.Label()
        Me.txtTime = New System.Windows.Forms.TextBox()
        Me.lblTime = New System.Windows.Forms.Label()
        Me.txtCrc32 = New System.Windows.Forms.TextBox()
        Me.lblCrc32 = New System.Windows.Forms.Label()
        Me.txtSHA1Time = New System.Windows.Forms.TextBox()
        Me.lblSHA1Time = New System.Windows.Forms.Label()
        Me.txtMD5Time = New System.Windows.Forms.TextBox()
        Me.lblMD5Time = New System.Windows.Forms.Label()
        Me.txtSHA1 = New System.Windows.Forms.TextBox()
        Me.lblSHA1 = New System.Windows.Forms.Label()
        Me.txtMD5 = New System.Windows.Forms.TextBox()
        Me.lblMD5 = New System.Windows.Forms.Label()
        Me.gbxResults.SuspendLayout()
        Me.SuspendLayout()
        '
        'btnPick
        '
        Me.btnPick.FlatStyle = System.Windows.Forms.FlatStyle.System
        Me.btnPick.Location = New System.Drawing.Point(264, 27)
        Me.btnPick.Name = "btnPick"
        Me.btnPick.Size = New System.Drawing.Size(20, 20)
        Me.btnPick.TabIndex = 8
        Me.btnPick.Text = "..."
        '
        'lblFilename
        '
        Me.lblFilename.Location = New System.Drawing.Point(4, 7)
        Me.lblFilename.Name = "lblFilename"
        Me.lblFilename.Size = New System.Drawing.Size(232, 16)
        Me.lblFilename.TabIndex = 7
        Me.lblFilename.Text = "File name:"
        '
        'btnCrc
        '
        Me.btnCrc.Enabled = False
        Me.btnCrc.FlatStyle = System.Windows.Forms.FlatStyle.System
        Me.btnCrc.Font = New System.Drawing.Font("Tahoma", 8.25!,
         System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point,
         CType(0, Byte))
        Me.btnCrc.Location = New System.Drawing.Point(4, 59)
        Me.btnCrc.Name = "btnCrc"
        Me.btnCrc.Size = New System.Drawing.Size(96, 28)
        Me.btnCrc.TabIndex = 5
        Me.btnCrc.Text = "&Hash"
        '
        'txtFileName
        '
        Me.txtFileName.Location = New System.Drawing.Point(4, 27)
        Me.txtFileName.Name = "txtFileName"
        Me.txtFileName.Size = New System.Drawing.Size(260, 21)
        Me.txtFileName.TabIndex = 6
        Me.txtFileName.Text = ""
        '
        'gbxResults
        '
        Me.gbxResults.Controls.AddRange(New System.Windows.Forms.Control()
         {Me.txtSHA1Time, Me.lblSHA1Time, Me.txtMD5Time, Me.lblMD5Time,
         Me.txtSHA1, Me.lblSHA1, Me.txtMD5, Me.lblMD5, Me.txtSize, Me.lblSize,
         Me.txtTime, Me.lblTime, Me.txtCrc32, Me.lblCrc32})
        Me.gbxResults.FlatStyle = System.Windows.Forms.FlatStyle.System
        Me.gbxResults.Location = New System.Drawing.Point(4, 103)
        Me.gbxResults.Name = "gbxResults"
        Me.gbxResults.Size = New System.Drawing.Size(284, 237)
        Me.gbxResults.TabIndex = 9
        Me.gbxResults.TabStop = False
        Me.gbxResults.Text = "Results:"
        '
        'txtSize
        '
        Me.txtSize.Location = New System.Drawing.Point(76, 24)
        Me.txtSize.Name = "txtSize"
        Me.txtSize.ReadOnly = True
        Me.txtSize.Size = New System.Drawing.Size(200, 21)
        Me.txtSize.TabIndex = 5
        Me.txtSize.Text = ""
        '
        'lblSize
        '
        Me.lblSize.Location = New System.Drawing.Point(12, 24)
        Me.lblSize.Name = "lblSize"
        Me.lblSize.Size = New System.Drawing.Size(64, 20)
        Me.lblSize.TabIndex = 4
        Me.lblSize.Text = "File Size:"
        '
        'txtTime
        '
        Me.txtTime.Location = New System.Drawing.Point(76, 76)
        Me.txtTime.Name = "txtTime"
        Me.txtTime.ReadOnly = True
        Me.txtTime.Size = New System.Drawing.Size(200, 21)
        Me.txtTime.TabIndex = 3
        Me.txtTime.Text = ""
        '
        'lblTime
        '
        Me.lblTime.Location = New System.Drawing.Point(10, 76)
        Me.lblTime.Name = "lblTime"
        Me.lblTime.Size = New System.Drawing.Size(64, 20)
        Me.lblTime.TabIndex = 2
        Me.lblTime.Text = "Time:"
        '
        'txtCrc32
        '
        Me.txtCrc32.Location = New System.Drawing.Point(76, 48)
        Me.txtCrc32.Name = "txtCrc32"
        Me.txtCrc32.ReadOnly = True
        Me.txtCrc32.Size = New System.Drawing.Size(200, 21)
        Me.txtCrc32.TabIndex = 1
        Me.txtCrc32.Text = ""
        '
        'lblCrc32
        '
        Me.lblCrc32.Location = New System.Drawing.Point(12, 48)
        Me.lblCrc32.Name = "lblCrc32"
        Me.lblCrc32.Size = New System.Drawing.Size(64, 20)
        Me.lblCrc32.TabIndex = 0
        Me.lblCrc32.Text = "CRC 32:"
        '
        'txtSHA1Time
        '
        Me.txtSHA1Time.Location = New System.Drawing.Point(76, 200)
        Me.txtSHA1Time.Name = "txtSHA1Time"
        Me.txtSHA1Time.ReadOnly = True
        Me.txtSHA1Time.Size = New System.Drawing.Size(200, 21)
        Me.txtSHA1Time.TabIndex = 21
        Me.txtSHA1Time.Text = ""
        '
        'lblSHA1Time
        '
        Me.lblSHA1Time.Location = New System.Drawing.Point(12, 200)
        Me.lblSHA1Time.Name = "lblSHA1Time"
        Me.lblSHA1Time.Size = New System.Drawing.Size(64, 20)
        Me.lblSHA1Time.TabIndex = 20
        Me.lblSHA1Time.Text = "Time:"
        '
        'txtMD5Time
        '
        Me.txtMD5Time.Location = New System.Drawing.Point(76, 140)
        Me.txtMD5Time.Name = "txtMD5Time"
        Me.txtMD5Time.ReadOnly = True
        Me.txtMD5Time.Size = New System.Drawing.Size(200, 21)
        Me.txtMD5Time.TabIndex = 19
        Me.txtMD5Time.Text = ""
        '
        'lblMD5Time
        '
        Me.lblMD5Time.Location = New System.Drawing.Point(12, 140)
        Me.lblMD5Time.Name = "lblMD5Time"
        Me.lblMD5Time.Size = New System.Drawing.Size(64, 20)
        Me.lblMD5Time.TabIndex = 18
        Me.lblMD5Time.Text = "Time:"
        '
        'txtSHA1
        '
        Me.txtSHA1.Location = New System.Drawing.Point(76, 176)
        Me.txtSHA1.Name = "txtSHA1"
        Me.txtSHA1.ReadOnly = True
        Me.txtSHA1.Size = New System.Drawing.Size(200, 21)
        Me.txtSHA1.TabIndex = 17
        Me.txtSHA1.Text = ""
        '
        'lblSHA1
        '
        Me.lblSHA1.Location = New System.Drawing.Point(12, 176)
        Me.lblSHA1.Name = "lblSHA1"
        Me.lblSHA1.Size = New System.Drawing.Size(64, 20)
        Me.lblSHA1.TabIndex = 16
        Me.lblSHA1.Text = "SHA-1:"
        '
        'txtMD5
        '
        Me.txtMD5.Location = New System.Drawing.Point(76, 116)
        Me.txtMD5.Name = "txtMD5"
        Me.txtMD5.ReadOnly = True
        Me.txtMD5.Size = New System.Drawing.Size(200, 21)
        Me.txtMD5.TabIndex = 15
        Me.txtMD5.Text = ""
        '
        'lblMD5
        '
        Me.lblMD5.Location = New System.Drawing.Point(12, 116)
        Me.lblMD5.Name = "lblMD5"
        Me.lblMD5.Size = New System.Drawing.Size(64, 20)
        Me.lblMD5.TabIndex = 14
        Me.lblMD5.Text = "MD5:"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 14)
        Me.ClientSize = New System.Drawing.Size(292, 350)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.btnPick,
         Me.lblFilename, Me.btnCrc, Me.txtFileName, Me.gbxResults})
        Me.Font = New System.Drawing.Font("Tahoma", 8.25!,
         System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point,
         CType(0, Byte))
        Me.Name = "Form1"
        Me.Text = "CRC 32 Tester - VB"
        Me.gbxResults.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
     System.EventArgs)
        Dim h As New HiResTimer()

        Console.WriteLine("{0} {1}", h.HasHiResCounter, h.Frequency)
        h.StartTimer()
        System.Threading.Thread.Sleep(1000)
        h.StopTimer()

        Console.WriteLine("{0}", h.ElapsedTime)

    End Sub

    Private Sub btnPick_Click(ByVal sender As System.Object, ByVal e As
     System.EventArgs) Handles btnPick.Click
        Dim o As OpenFileDialog = New OpenFileDialog()
        o.Filter = "All Files (*.*)|*.*"
        If (o.ShowDialog() = DialogResult.OK) Then
            txtFileName.Text = o.FileName
        End If

    End Sub

    Private Sub btnCrc_Click(ByVal sender As System.Object, ByVal e As
     System.EventArgs) Handles btnCrc.Click
        Dim c As New CRC32()
        Dim crc As Integer = 0

        Dim h As HiResTimer = New HiResTimer()
        Console.WriteLine("{0} {1}", h.HasHiResCounter, h.Frequency)

        ' CRC32 Hash:
        h.StartTimer()
        Dim f As FileStream = New FileStream(txtFileName.Text, FileMode.Open,
         FileAccess.Read, FileShare.Read, 8192)
        crc = c.GetCrc32(f)
        f.Close()
        h.StopTimer()

        ' File size:
        f = New FileStream(txtFileName.Text, FileMode.Open, FileAccess.Read,
         FileShare.Read, 8192)
        txtSize.Text = String.Format("{0}", f.Length)
        f.Close()
        txtCrc32.Text = String.Format("{0:X8}", crc)
        txtTime.Text = String.Format("{0}", h.ElapsedTime)

        ' Run MD5 Hash
        h = New HiResTimer()
        h.StartTimer()
        f = New FileStream(txtFileName.Text, FileMode.Open, FileAccess.Read,
         FileShare.Read, 8192)
        Dim md5 As MD5CryptoServiceProvider = New MD5CryptoServiceProvider()
        md5.ComputeHash(f)
        f.Close()
        h.StopTimer()

        Dim hash As Byte() = md5.Hash
        Dim buff As StringBuilder = New StringBuilder()
        Dim hashByte As Byte
        For Each hashByte In hash
            buff.Append(String.Format("{0:X1}", hashByte))
        Next
        txtMD5.Text = buff.ToString()
        txtMD5Time.Text = String.Format("{0}", h.ElapsedTime)

        ' Run SHA-1 Hash
        h = New HiResTimer()
        h.StartTimer()
        f = New FileStream(txtFileName.Text, FileMode.Open, FileAccess.Read,
         FileShare.Read, 8192)
        Dim sha1 As SHA1CryptoServiceProvider = New SHA1CryptoServiceProvider()
        sha1.ComputeHash(f)
        f.Close()
        h.StopTimer()

        hash = sha1.Hash
        buff = New StringBuilder()
        For Each hashByte In hash
            buff.Append(String.Format("{0:X1}", hashByte))
        Next
        txtSHA1.Text = buff.ToString()
        txtSHA1Time.Text = String.Format("{0}", h.ElapsedTime)

    End Sub

    Private Sub txtFileName_TextChanged(ByVal sender As System.Object, ByVal e
     As System.EventArgs) Handles txtFileName.TextChanged
        Dim testPath As String = txtFileName.Text
        btnCrc.Enabled = File.Exists(testPath)
    End Sub

End Class