CoreDispatcher.TryRunAsync(CoreDispatcherPriority, DispatchedHandler) 方法

定義

命名空間:

Windows.UI.Core

嘗試從背景工作執行緒在 UI 執行緒上排程指定的回呼，並以非同步方式傳回結果。

public:
 virtual IAsyncOperation<bool> ^ TryRunAsync(CoreDispatcherPriority priority, DispatchedHandler ^ agileCallback) = TryRunAsync;

/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncOperation<bool> TryRunAsync(CoreDispatcherPriority const& priority, DispatchedHandler const& agileCallback);

[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncOperation<bool> TryRunAsync(CoreDispatcherPriority priority, DispatchedHandler agileCallback);

function tryRunAsync(priority, agileCallback)

Public Function TryRunAsync (priority As CoreDispatcherPriority, agileCallback As DispatchedHandler) As IAsyncOperation(Of Boolean)

參數

priority

CoreDispatcherPriority

指定事件分派的優先順序。 將此設定為 CoreDispatcherPriority.Normal。

agileCallback

DispatchedHandler

發送器在分派事件時傳回的回呼。

傳回

IAsyncOperation<Boolean>

IAsyncOperation<bool>

非同步作業。

屬性

RemoteAsyncAttribute

備註

如果在 CoreDispatcher 關閉時呼叫，此方法將會順利完成並傳回 false。

另請參閱

• RunAsync(CoreDispatcherPriority, DispatchedHandler)