BCL mscorlib [00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00 ] 1.0.5000.0 2.0.0.0 4.0.0.0 System.Delegate System.Runtime.InteropServices.ComVisible(true) `` System.Void A object containing information about the asynchronous operation that has completed.

Use an delegate to process the results of an asynchronous operation in a separate thread. The delegate represents a callback method that is called when the asynchronous operation completes. The callback method takes an parameter, which is subsequently used to obtain the results of the asynchronous operation.

For more information about asynchronous programming, see Using an AsyncCallback Delegate to End an Asynchronous Operation and Using an AsyncCallback Delegate and State Object in Asynchronous Programming Design Patterns.

References a method to be called when a corresponding asynchronous operation completes.

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