UserConsentVerifier.CheckAvailabilityAsync 方法

  • 參考

定義

命名空間:
Windows.Security.Credentials.UI
編輯

檢查是否提供驗證器裝置，例如 Microsoft Passport PIN、Windows Hello或指紋辨識器。

public:
 static IAsyncOperation<UserConsentVerifierAvailability> ^ CheckAvailabilityAsync();
/// [Windows.Foundation.Metadata.RemoteAsync]
 static IAsyncOperation<UserConsentVerifierAvailability> CheckAvailabilityAsync();
[Windows.Foundation.Metadata.RemoteAsync]
public static IAsyncOperation<UserConsentVerifierAvailability> CheckAvailabilityAsync();
function checkAvailabilityAsync()
Public Shared Function CheckAvailabilityAsync () As IAsyncOperation(Of UserConsentVerifierAvailability)

傳回

IAsyncOperation<UserConsentVerifierAvailability>

描述可用性檢查作業結果的 UserConsentVerifierAvailability 值。

屬性
RemoteAsyncAttribute

備註

下列範例顯示檢查目前電腦是否支援指紋驗證的方法，並傳回描述結果的訊息。

public async Task<string> CheckConsentAvailability()
{
    string returnMessage = "";

    try
    {
        // Check the availability of Hello authentication.
        var ucvAvailability = await Windows.Security.Credentials.UI.UserConsentVerifier.CheckAvailabilityAsync();

        switch (ucvAvailability)
        {
            case Windows.Security.Credentials.UI.UserConsentVerifierAvailability.Available:
                returnMessage = "User consent verification available!";
                break;
            case Windows.Security.Credentials.UI.UserConsentVerifierAvailability.DeviceNotPresent:
                returnMessage = "No PIN found, please set one up.";
                break;
            default:
                returnMessage = "User consent verification is currently unavailable.";
                break;
        }
    }
    catch (Exception ex)
    {
        returnMessage = "User consent verification failed: " + ex.ToString();
    }

    return returnMessage;
}

適用於

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