LInet::Connect

#include "ltwrappr.h"

virtual L_INT LInet::Connect(pszAddress, nPort)

const L_CHAR * pszAddress;	/* address of the computer to which to connect */
L_INT nPort;	/* port on remote computer to which to connect */

Connects to a remote computer.

Parameter	Description
pszAddress	Character string containing the address of the computer to which you want to connect
nPort	Port on the remote computer to which to connect

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This function requests a connection to a remote computer. The remote computer must accept the connection by calling LInet::AcceptConnect.

pszAddress can be any URL or an IP address in the Internet dot notation. Ex. http://www.leadtools.com or 207.238.49.130.

A call to LInet::OnConnect will be generated when a connection request is successfully accepted by the remote computer.

You must initialize the LEADTOOLS Internet DLL using LInet::StartUp before calling this function.

Required DLLs and Libraries

LTNET

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Functions:	LInet::Close, LInet::ReadData, LInet::SendData, LInet::SendBitmap, LInet::SendSound, LInet::AutoProcess, LInet::ServerInit, LInet::ServerShutDown, LInet::GetHostName, LInet::AcceptConnect, LInet::StartUp, LInet::ShutDown, Class Members
Topics:	Sending and Receiving Data

Example

// The user should derive a class from LInet to support the OnConnect callback function
// suppose it was named as LUserInetConnect
class LUserInetConnect : public LInet
{
protected:
   virtual  L_INT OnConnect(LInet *plConnection, L_INT nError);
};
L_INT LInet__ConnectExample()
{
   L_INT             nRet;
   LUserInetConnect  UserInet;
   nRet = UserInet.StartUp();
   if(nRet != SUCCESS)
      return nRet;
   // connect to LEAD.
   nRet = UserInet.Connect("207.238.49.190", 1000);
   if(nRet != SUCCESS)
      return nRet;
   // other operations
   nRet = UserInet.ShutDown();
   if(nRet != SUCCESS)
      return nRet;
   return SUCCESS;
}
L_INT LUserInetConnect::OnConnect(LInet *plConnection, L_INT nError)
{
   L_CHAR *pName;
   L_INT nRet = SUCCESS;
   L_TCHAR szString[150] = TEXT("\0");
   if (nError != SUCCESS)
      return nError;
   // retreive the remote computer name
   if ((pName = plConnection->GetHostName(HOST_NAME_IP)) == NULL)
      return FAILURE;
   
   wsprintf(szString, TEXT("You have successfully connected to %s"), pName);
   MessageBox(NULL, szString, TEXT(""), MB_OK);
   
   // other operations
   // close the connection
   Close(plConnection);
   return nRet;
}