If Label3.Caption = Label4.Caption Then '一樣的話啟動以下指令
Else
Command1.Enabled = False
If App.PrevInstance Then '讀取前一個版本
MsgBox "請勿重複開啟", 48, "訊息"
End If
End If
End Sub
-------------------------模組內容-------------------------不解釋了------------------------------------------------------
' HTTP Downloading Module By Inndy
Option Explicit
' For API
Private Const CP_ACP = 0 ' default to ANSI code page
Private Const CP_UTF8 = 65001 ' default to UTF-8 code page
Private Declare Function MultiByteToWideChar Lib "kernel32" (ByVal CodePage As Long, ByVal dwFlags As Long, ByVal lpMultiByteStr As Long, ByVal cchMultiByte As Long, ByVal lpWideCharStr As Long, ByVal cchWideChar As Long) As Long
Private Declare Function WideCharToMultiByte Lib "kernel32" (ByVal CodePage As Long, ByVal dwFlags As Long, ByVal lpWideCharStr As Long, ByVal cchWideChar As Long, ByVal lpMultiByteStr As Long, ByVal cchMultiByte As Long, ByVal lpDefaultChar As Long, ByVal lpUsedDefaultChar As Long) As Long
' For module
Public Enum Encode
ANSI = 0
BIG5 = 1
UTF8 = 2
End Enum
Private Function ToUTF8(ByVal sData As String) As Byte()
Dim aRetn() As Byte, nSize As Long
nSize = WideCharToMultiByte(CP_UTF8, 0, StrPtr(sData), -1, 0, 0, 0, 0)
ReDim aRetn(0 To nSize - 1) As Byte
WideCharToMultiByte CP_UTF8, 0, StrPtr(sData), -1, VarPtr(aRetn(0)), nSize, 0, 0
ToUTF8 = aRetn
End Function
Private Function FromUTF8(ByVal sData As String) As Byte()
Dim aRetn() As Byte, nSize As Long
nSize = MultiByteToWideChar(CP_UTF8, 0, StrPtr(sData), -1, 0, 0)
ReDim aRetn(0 To 2 * nSize - 1) As Byte
MultiByteToWideChar CP_UTF8, 0, StrPtr(sData), -1, VarPtr(aRetn(0)), nSize
FromUTF8 = aRetn
End Function
Public Function DownloadData(ByVal url As String) As Byte()
Dim http As Object
Set http = CreateObject("MSXML2.ServerXMLHTTP")
http.Open "GET", url, False
http.setRequestHeader "Pragma", "no-cache"
http.send
DownloadData = http.responseBody
Set http = Nothing
End Function
Public Function DownloadString(ByVal url As String, Optional ByVal EncType As Encode = Encode.BIG5) As String
If EncType = Encode.ANSI Then
DownloadString = DownloadData(url)
ElseIf EncType = Encode.BIG5 Then
DownloadString = StrConv(DownloadData(url), vbUnicode)
Else
DownloadString = FromUTF8(DownloadData(url))
End If
End Function
Public Function DownloadFile(ByVal url As String, ByVal file As String) As Boolean
On Error GoTo Failed
Dim f As Integer
f = FreeFile
Open file For Binary As f
Put f, , DownloadData(url)
Close f
DownloadFile = True
Exit Function
Failed:
DownloadFile = False
End Function