IAsyncOperation<TResult> interface
Represents an asynchronous operation that returns a result.
Template parameters
- TResult
The type that encapsulates the result from the asynchronous operation.
Members
The IAsyncOperation<TResult> interface inherits from IAsyncInfo. IAsyncOperation also has these types of members:
- Methods
Methods
The IAsyncOperation<TResult> interface has these methods.
| Method | Description |
|---|---|
| get_Completed | Gets the method that is called when the asynchronous operation completes. |
| GetResults | Gets the outcome of the asynchronous operation. |
| put_Completed | Sets the method that is called when the asynchronous action completes. |
Remarks
The IAsyncOperation<TResult> interface represents an asynchronous operation that returns a result and does not have progress notifications. When the operation completes, the IAsyncOperationCompletedHandler<TResult> specified by get_Completed is invoked. The GetResults method receives a pointer to the task results (TResult) of the operation.
Use the Task type provided in the Parallel Patterns Library (ppltasks.h) for asynchronous operations in your own app. For managed code, consider using the await keyword instead of directly using this interface.
IAsyncOperation<T> myAsyncOp = MyObj.SomePublicAsyncMethod();
myAsyncOp.Completed = (op) => {
// ...
T myResults = op.GetResults();
// ...
};
Requirements
Minimum supported client |
Windows 8 |
Minimum supported server |
Windows Server 2012 |
Header |
Windows.Foundation.Collections.h |