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(Mono C#) Understanding Async Function Return ValuesSee more Async ExamplesExplains how to get the return value of the function called synchonously in the background thread.
// Some Chilkat functions can be called asynchronously. // If a function "Func" can be called asynchronously, there will be a corresponding "FuncAsync" function that returns a Task object. // // When Task.Run is called, the synchronous "Func" runs in a background thread. // // For Chilkat methods that return a status (true/false), get returned value by calling GetResultBool. // For example.. Chilkat.Socket sock = new Chilkat.Socket(); // -------------------------------------------------------------- // Synchronous call returning true/false bool success = sock.Connect("example.com",443,true,5000); // -------------------------------------------------------------- // Asynchronous call Chilkat.Task task = sock.ConnectAsync("example.com",443,true,5000); // ... task.Run(); // ... // ... // Get the status (true/false) value returned by the synchronous method called in the background thread. success = task.GetResultBool(); // -------------------------------------------------------------- // Synchronous call returning an integer int count = sock.ReceiveCount(); // -------------------------------------------------------------- // Asynchronous call task = sock.ReceiveCountAsync(); // ... task.Run(); // ... // ... // Get the integer value returned by the synchronous method called in the background thread. count = task.GetResultInt(); // -------------------------------------------------------------- // Synchronous call returning an string string s = sock.ReceiveString(); // -------------------------------------------------------------- // Asynchronous call task = sock.ReceiveStringAsync(); // ... task.Run(); // ... // ... // Get the string value returned by the synchronous method called in the background thread. s = task.GetResultString(); // -------------------------------------------------------------- // Synchronous call returning an object Chilkat.Socket connection = sock.AcceptNextConnection(5000); // -------------------------------------------------------------- // Asynchronous call task = sock.AcceptNextConnectionAsync(); // ... task.Run(); // ... // ... // Get the object returned by the synchronous method called in the background thread. // We do this a little differently. We create an new object of the same type, // and then load it with the returned object (assuming it was not null). Chilkat.Socket acceptedConnection = new Chilkat.Socket(); if (task.TaskSuccess == true) { success = acceptedConnection.LoadTaskResult(task); } |
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