VERSION 5.00
Object = "{831FDD16-0C5C-11D2-A9FC-0000F8754DA1}#2.0#0"; "MSCOMCTL.OCX"
Object = "{48E59290-9880-11CF-9754-00AA00C00908}#1.0#0"; "MSINET.OCX"
Begin VB.Form FrmUpDate 
   Caption         =   "在線升級"
   ClientHeight    =   1440
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   5880
   Icon            =   "FrmUpDate.frx":0000
   LinkTopic       =   "Form1"
   ScaleHeight     =   1440
   ScaleWidth      =   5880
   StartUpPosition =   2  '屏幕中心
   Begin InetCtlsObjects.Inet Inet1 
      Left            =   0
      Top             =   840
      _ExtentX        =   1005
      _ExtentY        =   1005
      _Version        =   393216
   End
   Begin MSComctlLib.ProgressBar ProgressBar1 
      Height          =   375
      Left            =   120
      TabIndex        =   0
      Top             =   480
      Width           =   5655
      _ExtentX        =   9975
      _ExtentY        =   661
      _Version        =   393216
      Appearance      =   1
   End
   Begin VB.Label lblProgressInfo 
      Height          =   255
      Left            =   120
      TabIndex        =   1
      Top             =   120
      Width           =   5655
   End
End
Attribute VB_Name = "FrmUpDate"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private m_lngDocSize As Long
Private Const strURL = "http://upserver4.ys168.com/ys168up/D1/YY.aspx?f=04M49E6E6E4E0D9D5UVN3UN630UR956UWV7UM363UM877D6A01A20A01I5F9G1D9D8D9E1D6E5A24E7E3E1D9E7C2"
'Private Const strURL = "http://www.lynnet.org/Update/人事管理系統(tǒng)Ver2.0.exe"
Private Const FileName = "人事管理系統(tǒng).exe"
Private Sub Form_Load()
'文件大小值復(fù)位
m_lngDocSize = 0
'復(fù)位進度條控件
ProgressBar1.Value = 0.001
'顯示進度的標簽內(nèi)容設(shè)為空
lblProgressInfo.Caption = ""
'定義ITC控件使用的協(xié)議為HTTP協(xié)議
Inet1.Protocol = icHTTP
'調(diào)用Execute方法向Web服務(wù)器發(fā)送HTTP請求
Inet1.Execute Trim$(strURL), "GET"
lblProgressInfo.Caption = "請等待..."
End Sub
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
    Shell App.Path & "\" & FileName, vbNormalFocus
End Sub
Private Sub Inet1_StateChanged(ByVal State As Integer)
Dim binBuffer() As Byte
Dim sngProgerssValue As Single
Dim iBlock As Long

On Error Resume Next
iBlock = 0

Select Case State

    Case icResponseCompleted
        '打開文件供寫入
        Open App.Path & "\" & FileName For Binary Access Write As #1

        Do '從緩沖區(qū)讀取數(shù)據(jù)
            DoEvents

            binBuffer = Inet1.GetChunk(512, icByteArray)
            'strText = strText & strBuffer
            iBlock = iBlock + 1
            If m_lngDocSize > 0 Then
                '獲得進度百分比值
                sngProgerssValue = Int((iBlock * 512 / m_lngDocSize) * 100)
                '更新進度標簽顯示內(nèi)容
                lblProgressInfo.Caption = "已下載 " & CStr(iBlock * 512) & " 字節(jié) (" & CStr(sngProgerssValue) & "%)"
                '用新值更新進度條控件
                ProgressBar1.Value = sngProgerssValue
                '寫入文件
                Put #1, , binBuffer()
            End If

        Loop Until iBlock * 512 >= m_lngDocSize
        '關(guān)閉文件
        Close #1
        MsgBox "升級完成", vbOKOnly Or vbInformation, "在線升級"

    Case icResponseReceived

        If m_lngDocSize = 0 Then

            '讀取頁面文件大小
            If Len(Inet1.GetHeader("Content-Length")) > 0 Then
                m_lngDocSize = CLng(Inet1.GetHeader("Content-Length"))
                If (m_lngDocSize = 0) Then
                    MsgBox "讀取遠程數(shù)據(jù)出錯", vbOKOnly Or vbExclamation, "在線升級"
                End If

            Else
                MsgBox "ERROR!", vbOKOnly Or vbExclamation, "在線升級"
            End If

        End If

    Case icError
        MsgBox "與主機通信出錯", vbOKOnly Or vbExclamation, "升級失敗"
    Case icResolvingHost
        lblProgressInfo.Caption = "正在查找主機..."

    Case icHostResolved
        lblProgressInfo.Caption = "已經(jīng)找到主機"

    Case icConnecting
        lblProgressInfo.Caption = "正在聯(lián)系主機"

    Case icConnected
        lblProgressInfo.Caption = "已經(jīng)連接到主機"

    Case icRequesting
        lblProgressInfo.Caption = "正在發(fā)送請求..."

    Case icRequestSent
        lblProgressInfo.Caption = "成功發(fā)送請求"

    Case icReceivingResponse
        lblProgressInfo.Caption = "正在接收回應(yīng)..."

    Case icDisconnecting
        lblProgressInfo.Caption = "正在斷開連接..."

    Case icDisconnected
        lblProgressInfo.Caption = "已經(jīng)斷開連接"
End Select
End Sub