Description
An object that supports the System.IAsyncResult interface stores state information for an asynchronous operation, and provides a synchronization object to allow threads to be signaled when the operation completes.
System.IAsyncResult objects are returned by methods that begin asynchronous operations, such as System.IO.FileStream.BeginRead, and are passed to methods used to complete asynchronous operations, such as System.IO.FileStream.EndRead. System.IAsyncResult objects are also passed to methods invoked by System.Async-Callback delegates when an asynchronous operation completes.
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