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(Unicode C++) Get the LastErrorText for an Asynchronous Method CallSee more Async ExamplesDemonstrates how to get the LastErrorText information for a Chilkat method called asynchronously.
#include <CkSocketW.h> #include <CkTaskW.h> void ChilkatSample(void) { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkSocketW socket; // The Async call simply creates the task. The "Connect" method has not yet been called. int maxWaitMs = 5000; // Let's intentionally cause this connect to fail by giving it an invalid domain.. CkTaskW *task = socket.ConnectAsync(L"amazonbladflakjsdflksadjf.com",443,true,maxWaitMs); if (socket.get_LastMethodSuccess() == false) { wprintf(L"%s\n",socket.lastErrorText()); return; } // Start the background thread to run the task. bool success = task->Run(); if (!success) { wprintf(L"%s\n",task->lastErrorText()); delete task; return; } // The application is now free to do anything else // For this example, we'll simply sleep and periodically // check to see if the Socket Connect if finished. while (task->get_Finished() != true) { // Sleep 1 ms. task->SleepMs(1); } // If the task completed, it means the method (in this case the Connect method) was called and returned success or failure. if (task->get_StatusInt() != 7) { wprintf(L"Task did not complete.\n"); wprintf(L"task status: %s\n",task->status()); delete task; return; } // Get the success/failure of the Connect // (This is the return value of the Connect method had it been called synchronously) success = task->GetResultBool(); if (success == false) { // Get the LastErrorText for the Connect method call. // Had we called Connect synchronously, we would've simply accessed the socket object's LastErrorText property. // Instead, we get the task object's ResultErrorText. wprintf(L"%s\n",task->resultErrorText()); } else { wprintf(L"Connect succeeded.\n"); } delete task; } |
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