通过

UserDataProtectionManager.DataAvailabilityStateChanged 事件

  • 参考

定义

命名空间:
Windows.Security.DataProtection
编辑

当数据可用性的状态发生更改时，此事件将调用侦听器。 例如，当设备锁定时，受“WhileUnlocked”UserDataAvailability 保护的数据将不可用。 可以通过订阅此事件来侦听此状态更改。

// Register
event_token DataAvailabilityStateChanged(TypedEventHandler<UserDataProtectionManager, UserDataAvailabilityStateChangedEventArgs const&> const& handler) const;

// Revoke with event_token
void DataAvailabilityStateChanged(event_token const* cookie) const;

// Revoke with event_revoker
UserDataProtectionManager::DataAvailabilityStateChanged_revoker DataAvailabilityStateChanged(auto_revoke_t, TypedEventHandler<UserDataProtectionManager, UserDataAvailabilityStateChangedEventArgs const&> const& handler) const;
public event TypedEventHandler<UserDataProtectionManager,UserDataAvailabilityStateChangedEventArgs> DataAvailabilityStateChanged;
function onDataAvailabilityStateChanged(eventArgs) { /* Your code */ }
userDataProtectionManager.addEventListener("dataavailabilitystatechanged", onDataAvailabilityStateChanged);
userDataProtectionManager.removeEventListener("dataavailabilitystatechanged", onDataAvailabilityStateChanged);
- or -
userDataProtectionManager.ondataavailabilitystatechanged = onDataAvailabilityStateChanged;
Public Custom Event DataAvailabilityStateChanged As TypedEventHandler(Of UserDataProtectionManager, UserDataAvailabilityStateChangedEventArgs)

事件类型

TypedEventHandler<UserDataProtectionManager,UserDataAvailabilityStateChangedEventArgs>

适用于