Dear sirs,
I am trying use one code for transfer some data from my C++ dll to my server(website) and return response from server to dll again.
For example i send one serial number to server and server return another confirmation number to my dll.

I am using below code and I can read data from my server by BOOL bRead = InternetReadFile(webResult, szwebBuffer, dwBytes, &dwBytesActual);

i want know how I can send data to my server?
Which function I can use?

my code is same below:
HINTERNET webHANDLE = InternetOpen(strTopic.c_str(), 0, "0", "0", 0);
HINTERNET webResult = InternetOpenUrlA(webHANDLE, strHttpReq.c_str(), "0", 0, -2080374528, 0);
if ( webResult )
{
char * szwebBuffer[1024];
memset(szwebBuffer,0,sizeof(szwebBuffer));
DWORD dwBytes = sizeof(szwebBuffer);
DWORD dwBytesActual = 0;
BOOL bRead = InternetReadFile(webResult, szwebBuffer, dwBytes, &dwBytesActual);
InternetCloseHandle(webResult);
gpVar->strAccNumber = (char*)szwebBuffer;
}

Thanks.