Source code recommendation: VB calls Wininet API interface POST data to the specified 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.comPrivate 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 "Wi ninet.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, _ B yVal lHeadersLength As Long, _ ByVal lModifiers As Long) As IntegerPublic 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 = & H200000 Const HTTP_A DDREQ_FLAG_REPLACE = & H80000000 sHeader = "Content-Type: application / x-www-form-urlencoded" _ & vbCrLf bRet = HttpAddRequestHeaders (hHttpOpenRequest, _ sHeader, Len (sHeader), HTTP_ADDREQ_FLAG_REPLACE _ Or HTTP_ADDREQ_FLAG_ADD) Dim lpszPostData As String Dim lPostDataLen As Long LpszpostData = postdat $ lpostdatalen = len (lpszpostdata) Bret =
