Question

I use CInternetSession with GetHttpConnection, but I can’t find anywhere a good info on how to fill and post a web form.

Answer 1

This knowledge base article explains how to simulate a POST request using CInternetSession.

The included sample code goes like this:

CString strHeaders = _T("Content-Type: application/x-www-form-urlencoded");
// URL-encoded form variables -
// name = "John Doe", userid = "hithere", other = "P&Q"
CString strFormData = _T("name=John+Doe&userid=hithere&other=P%26Q");

CInternetSession session;
CHttpConnection *pConnection = session.GetHttpConnection(_T("ServerNameHere"));
CHttpFile *pFile = pConnection->OpenRequest(CHttpConnection::HTTP_VERB_POST,
    _T("FormActionHere"));
BOOL result = pFile->SendRequest(strHeaders, (LPVOID) (LPCTSTR) strFormData,
    strFormData.GetLength());