BarcodeScanner.CheckHealthAsync(UnifiedPosHealthCheckLevel) 方法

定义

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

编辑

测试条形码扫描仪的状态。

public:
 virtual IAsyncOperation<Platform::String ^> ^ CheckHealthAsync(UnifiedPosHealthCheckLevel level) = CheckHealthAsync;

/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncOperation<winrt::hstring> CheckHealthAsync(UnifiedPosHealthCheckLevel const& level);

[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncOperation<string> CheckHealthAsync(UnifiedPosHealthCheckLevel level);

function checkHealthAsync(level)

Public Function CheckHealthAsync (level As UnifiedPosHealthCheckLevel) As IAsyncOperation(Of String)

指定的运行状况检查级别。

IAsyncOperation<Platform::String>

IAsyncOperation<winrt::hstring>

测试结果的文本说明。如果设备不支持指定的检查级别，则返回错误。