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(Unicode C) TCP/IP Socket Connect to Remote Host:PortDemonstrates how to create a TCP/IP socket, connect to a remote host:port, and receive a "Hello World!" message.
#include <C_CkSocketW.h> void ChilkatSample(void) { HCkSocketW socket; BOOL ssl; int maxWaitMillisec; BOOL success; const wchar_t *receivedMsg; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. socket = CkSocketW_Create(); // Connect to port 5555 of localhost. // The string "localhost" is for testing on a single computer. // It would typically be replaced with an IP hostname, such // as "www.chilkatsoft.com". ssl = FALSE; maxWaitMillisec = 20000; success = CkSocketW_Connect(socket,L"localhost",5555,ssl,maxWaitMillisec); if (success != TRUE) { wprintf(L"%s\n",CkSocketW_lastErrorText(socket)); CkSocketW_Dispose(socket); return; } // Set maximum timeouts for reading an writing (in millisec) CkSocketW_putMaxReadIdleMs(socket,10000); CkSocketW_putMaxSendIdleMs(socket,10000); // Pretend, for the sake of the example, that the // ficticious server is going to send a "Hello World!" // after accepting the connection. // Note: Technically, the ReceiveString may not receive the // complete string, although it's highly probable given the short // length of the "Hello World!" message. // See this Chilkat blog post for more information: // http://www.cknotes.com/?p=302 receivedMsg = CkSocketW_receiveString(socket); if (CkSocketW_getLastMethodSuccess(socket) != TRUE) { wprintf(L"%s\n",CkSocketW_lastErrorText(socket)); CkSocketW_Dispose(socket); return; } // Close the connection with the server // Wait a max of 20 seconds (20000 millsec) success = CkSocketW_Close(socket,20000); wprintf(L"%s\n",receivedMsg); CkSocketW_Dispose(socket); } |
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