Adding CSocket functionality

[redoctober]

Hi there,
I have to add network functionaly to the existing project which was originally created without Windows Sockets support. I've programmed networking before, but it seems that that some settings or something being turned on when you create project with win socket support. I'm having hard time figuring out what i have to do with the project so it would start understanding CSockets. What i've done so far to add CSocket is:
added line #include <afxsock.h> to Stdafx.h file
and
added Windows sockets component from Project->Add to Project->Components and Controls->Windows sockets

But it still seems to be not enough. Program compiles, but when i run it, it crashes when i try to create CSocketFile (line 3):
1. m_CSoc = new CClientSocket();
2. m_CSoc->Connect(myip, myport);
3. file = new CSocketFile(m_CSoc);
4. m_CSoc->arIn = new CArchive(file,CArchive::load);
5. m_CSoc->arOut = new CArchive(file,CArchive::store);

Exact same code worked fine in another program.
Can anyone see if i'm missing any initialization?
thanks for any help.

 

[redoctober]

Sorry, guys. Disregard the question. Stupid me forgot one more line of code. It should look like this:

1. m_CSoc = new CClientSocket();
2. m_Csoc->Create();
3. m_CSoc->Connect(myip, myport);
4. file = new CSocketFile(m_CSoc);
5. m_CSoc->arIn = new CArchive(file,CArchive::load);
6. m_CSoc->arOut = new CArchive(file,CArchive::store);

Now it works.

 

[qednick]

Are you sure you have initialized sockets with the DLL before trying to use sockets?

Here's some code that does this:

[tt]WSADATA wsaData;
WORD wVersion = MAKEWORD(1, 1);
WSAStartup(wVersion, &wsaData);[/tt]

When you have finished with the sockets you need to call:

[tt]WSACleanup()[/tt]

^{programmer (prog'ram'er), n A hot-headed, anorak wearing, pimple-faced computer geek.}​

 

[redoctober]

When you add Windows sockets component to the project it adds the following code to the BOOL CTestApp::InitInstance()

if (!AfxSocketInit())
{
AfxMessageBox(CG_IDS_SOCKETS_INIT_FAILED);
return FALSE;
}

I would assume all necessary initialization with dll are done there. But it's only a guess. In any case my program works now, so i'd say it's a reasonable guess
thanks for the suggestion, though.

 

[qednick]

I would have thought so but I can never get sockets to work unless I specifically add the init code - even when I add the socket component to a new project.

^{programmer (prog'ram'er), n A hot-headed, anorak wearing, pimple-faced computer geek.}​