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What does WSAaGetLastError report?
led mike
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inet_addr() expects a dotted IP address. Is that what your getAddr() func returns?
If not, maybe you can use getaddrinfo() to resolve the name (google.com) to an address.
Mark
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But what is the string value? An IP address "xxx.xxx.xxx.xxx" or a name "google.com"?
Mark
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That won't work. You need to resolve google.com to an ip address (DNS works  )
getaddrinfo() will use DNS if you have it configured (if you can post here I imagine you do)
Here's some sample code ripped right from MSDN...
char* ip = "google.com";
char* port = "80";
struct addrinfo aiHints;
struct addrinfo *aiList = NULL;
int retVal;
memset(&aiHints, 0, sizeof(aiHints));
aiHints.ai_family = AF_INET;
aiHints.ai_socktype = SOCK_STREAM;
aiHints.ai_protocol = IPPROTO_TCP;
if ((retVal = getaddrinfo(ip, port, &aiHints, &aiList)) != 0)
{
printf("getaddrinfo() failed.\n");
}
else
{
printf("getaddrinfo() succeeded.\n");
}On success, aiList will have all the info you need to make a connection.
Mark
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Anywhere before you call connect(), in place of the code you posted that builds the address
(my_addr).
Where I used
char* ip = "google.com";
you can use your getAddr()
Where I used
char* port = "80";
you can either convert your returned getPort() to a string or use the service name instead
char* port = "http";
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A deprecated solution...
sockaddr_in my_addr;
memset(&my_addr, 0, sizeof(sockaddr_in));
...
HOSTENT *pHostent = ::gethostbyname(getAddr( ));
if (pHostent && pHostent->h_addrtype == AF_INET)
{
my_addr.sin_family = AF_INET;
my_addr.sin_port = htons( getPort( ) );
my_addr.sin_addr = *(in_addr *)(pHostent->h_addr_list[0]);
if ( connect( hSocket, ( const struct sockaddr* ) &my_addr, sizeof( my_addr ) ) == SOCKET_ERROR )
{
return( false );
}
}
else
{
return( false );
}
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if ( connect( hSocket, aiList[0].ai_addr, sizeof( aiList ) ) == -1 ) { return( false ); }
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ack sorry
if ( connect( hSocket, aiList[0].ai_addr, sizeof( sockaddr ) ) == -1 ) { return( false ); }
If that doesn't work:
check aiList[0].ai_addr in debugger - is it valid address/port?
hSocket valid? Created as TCP socket?
WSAGetLastError() returns what after failed connect()?
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10038
Socket operation on nonsocket.
An operation was attempted on something that is not a socket. Either the socket handle parameter
did not reference a valid socket, or for select, a member of an fd_set was not valid
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Armond Sarkisian wrote: Can I zip up all four files and send it to you?
Before we do that, try this...I just connected to google.com - 3 different ip addresses returned
by DNS. step through this in the debugger. Notice I'm using ALL the info returned by getaddrinfo
to do the socket() and connect() calls. Does this all succeed for you?
char* ip = "google.com";
char* port = "80";
struct addrinfo aiHints;
struct addrinfo *aiList = NULL;
int retVal;
sockaddr addr;
memset(&aiHints, 0, sizeof(aiHints));
aiHints.ai_family = AF_INET;
aiHints.ai_socktype = SOCK_STREAM;
aiHints.ai_protocol = IPPROTO_TCP;
if ((retVal = getaddrinfo(ip, port, &aiHints, &aiList)) != 0)
{
printf("getaddrinfo() failed.\n");
}
else
{
int SockErr;
addrinfo *pAddrInfo = aiList;
while (pAddrInfo)
{
addr = *pAddrInfo->ai_addr;
SOCKET s = socket(pAddrInfo->ai_family, pAddrInfo->ai_socktype, pAddrInfo->ai_protocol);
if (s != INVALID_SOCKET)
{
if (SOCKET_ERROR == connect(s, &addr, sizeof(sockaddr)))
{
SockErr = WSAGetLastError();
}
closesocket(s);
}
else
{
SockErr = WSAGetLastError();
}
pAddrInfo = pAddrInfo->ai_next;
}
}
Same code without /pre tags...
char* ip = "google.com";
char* port = "80";
struct addrinfo aiHints;
struct addrinfo *aiList = NULL;
int retVal;
sockaddr addr;
memset(&aiHints, 0, sizeof(aiHints));
aiHints.ai_family = AF_INET;
aiHints.ai_socktype = SOCK_STREAM;
aiHints.ai_protocol = IPPROTO_TCP;
if ((retVal = getaddrinfo(ip, port, &aiHints, &aiList)) != 0)
{
printf("getaddrinfo() failed.\n");
}
else
{
int SockErr;
addrinfo *pAddrInfo = aiList;
while (pAddrInfo)
{
addr = *pAddrInfo->ai_addr;
SOCKET s = socket(pAddrInfo->ai_family, pAddrInfo->ai_socktype, pAddrInfo->ai_protocol);
if (s != INVALID_SOCKET)
{
if (SOCKET_ERROR == connect(s, &addr, sizeof(sockaddr)))
{
SockErr = WSAGetLastError();
}
closesocket(s);
}
else
{
SockErr = WSAGetLastError();
}
pAddrInfo = pAddrInfo->ai_next;
}
}
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At the socket call I assume. WSAGetLastError() gives you what after that call?
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 OMG it took a long time to find the problem in your code
You owe me man  I found 3 things - #1 was the tough one...
1) change (in sockets::socket_create()) Note parenthesis
//if( hSocket = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP ) != INVALID_SOCKET )
if( (hSocket = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP )) != INVALID_SOCKET )
2) I added this to sockets::socket_end() (befor WSACleanup() call)
if (hSocket != INVALID_SOCKET)
{
closesocket(hSocket);
hSocket = INVALID_SOCKET;
}
3) change in (sockets::socket_end()) note comparison operator
//if( WSACleanup( ) != 0 ){ return( true ); }
if( WSACleanup( ) == 0 ){ return( true ); }
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I've wasted an entire day over this, I can't find the information in the MSDN.. 
I'm using the VFW for video recording, I'm unable to enumerate the available video devices available and to select a specific device in code. The only method I found was to open the select device form (WM_CAP_DLG_VIDEOSOURCE) but I don't want any user interaction..
The MSDN states "..Connect and disconnect video and audio input devices dynamically" which is exactly what I want..
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