vb调用winInet API接口post数据到指定的url

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vb调用winInet API接口post数据到指定的url

作者：/shines/ 来源：csdn 点击：更新：2006-12-19

简介：

『vb调用winInet API接口post数据到指定的url』

'This module is called modWinInet.bas. Use the SplitAddr() function to get the address in the correct format for PostInfo.

Option Explicit

'Author:    Sam Huggill
'Email:     sam@vbsquare.com

Private Declare Function InternetOpen Lib "wininet.dll" _
         Alias "InternetOpenA" _
            (ByVal lpszCallerName As String, _
             ByVal dwAccessType As Long, _
             ByVal lpszProxyName As String, _
             ByVal lpszProxyBypass As String, _
             ByVal dwFlags As Long) As Long

      Private Declare Function InternetConnect Lib "wininet.dll" _
            Alias "InternetConnectA" _
            (ByVal hInternetSession As Long, _
             ByVal lpszServerName As String, _
             ByVal nProxyPort As Integer, _
             ByVal lpszUsername As String, _
             ByVal lpszPassword As String, _
             ByVal dwService As Long, _
             ByVal dwFlags As Long, _
             ByVal dwContext As Long) As Long

   Private Declare Function InternetReadFile Lib "wininet.dll" _
            (ByVal hFile As Long, _
             ByVal sBuffer As String, _
             ByVal lNumBytesToRead As Long, _
             lNumberOfBytesRead As Long) As Integer

   Private Declare Function HttpOpenRequest Lib "wininet.dll" _
            Alias "HttpOpenRequestA" _
            (ByVal hInternetSession As Long, _
             ByVal lpszVerb As String, _
             ByVal lpszObjectName As String, _
             ByVal lpszVersion As String, _
             ByVal lpszReferer As String, _
             ByVal lpszAcceptTypes As Long, _
             ByVal dwFlags As Long, _
             ByVal dwContext As Long) As Long

   Private Declare Function HttpSendRequest Lib "wininet.dll" _
            Alias "HttpSendRequestA" _
            (ByVal hHttpRequest As Long, _
             ByVal sHeaders As String, _
             ByVal lHeadersLength As Long, _
             ByVal sOptional As String, _
             ByVal lOptionalLength As Long) As Boolean

   Private Declare Function InternetCloseHandle Lib "wininet.dll" _
            (ByVal hInternetHandle As Long) As Boolean

   Private Declare Function HttpAddRequestHeaders Lib "wininet.dll" _
             Alias "HttpAddRequestHeadersA" _
             (ByVal hHttpRequest As Long, _
             ByVal sHeaders As String, _
             ByVal lHeadersLength As Long, _
             ByVal lModifiers As Long) As Integer

Public Function PostInfo$(srv$, port$, script$, postdat$)

  Dim hInternetOpen As Long
  Dim hInternetConnect As Long
  Dim hHttpOpenRequest As Long
  Dim bRet As Boolean

  hInternetOpen = 0
  hInternetConnect = 0
  hHttpOpenRequest = 0

  'Use registry access settings.
  Const INTERNET_OPEN_TYPE_PRECONFIG = 0
  hInternetOpen = InternetOpen("http generic", _
                  INTERNET_OPEN_TYPE_PRECONFIG, _
                  vbNullString, _
                  vbNullString, _
                  0)

  If hInternetOpen <> 0 Then
     'Type of service to access.
     Const INTERNET_SERVICE_HTTP = 3
     Const INTERNET_DEFAULT_HTTP_PORT = 80
     'Change the server to your server name
     hInternetConnect = InternetConnect(hInternetOpen, _
                        srv$, _
                        port$, _
                        vbNullString, _
                        "HTTP/1.0", _
                        INTERNET_SERVICE_HTTP, _
                        0, _
                        0)

     If hInternetConnect <> 0 Then
      'Brings the data across the wire even if it locally cached.
       Const INTERNET_FLAG_RELOAD = &H80000000
       hHttpOpenRequest = HttpOpenRequest(hInternetConnect, _
                           "POST", _
                           script$, _
                           "HTTP/1.0", _
                           vbNullString, _
                           0, _
                           INTERNET_FLAG_RELOAD, _
                           0)

        If hHttpOpenRequest <> 0 Then
           Dim sHeader As String
           Const HTTP_ADDREQ_FLAG_ADD = &H20000000
           Const HTTP_ADDREQ_FLAG_REPLACE = &H80000000
  sHeader = "Content-Type: applic

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