DisplayManager.PathsFailedOrInvalidated 事件

定义

命名空间:

Windows.Devices.Display.Core

每当系统异步显示路径失败或失效时引发的事件。 这可能是由于硬件带宽要求更改或驱动程序故障造成的。

此事件的订阅者应为其拥有的目标调用 TryAcquireTargetsAndReadCurrentState，并检查生成的 DisplayState 对象中的任何路径是否将其 Status 属性设置为 FailedAsync 或 InvalidatedAsync，并采取建议的操作。

// Register
event_token PathsFailedOrInvalidated(TypedEventHandler<DisplayManager, DisplayManagerPathsFailedOrInvalidatedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
DisplayManager::PathsFailedOrInvalidated_revoker PathsFailedOrInvalidated(auto_revoke_t, TypedEventHandler<DisplayManager, DisplayManagerPathsFailedOrInvalidatedEventArgs const&> const& handler) const;

public event TypedEventHandler<DisplayManager,DisplayManagerPathsFailedOrInvalidatedEventArgs> PathsFailedOrInvalidated;

function onPathsFailedOrInvalidated(eventArgs) { /* Your code */ }
displayManager.addEventListener("pathsfailedorinvalidated", onPathsFailedOrInvalidated);
displayManager.removeEventListener("pathsfailedorinvalidated", onPathsFailedOrInvalidated);
- or -
displayManager.onpathsfailedorinvalidated = onPathsFailedOrInvalidated;

Public Custom Event PathsFailedOrInvalidated As TypedEventHandler(Of DisplayManager, DisplayManagerPathsFailedOrInvalidatedEventArgs) 

事件类型

TypedEventHandler<DisplayManager,DisplayManagerPathsFailedOrInvalidatedEventArgs>