CompositionTarget.SurfaceContentsLost 事件

定义

命名空间:

Windows.UI.Xaml.Media

发生基础重大更改（例如 DirectX 设备更改）时发生。 通常，当收到此事件的通知时，应用程序必须重新生成其表面内容。

// Register
static event_token SurfaceContentsLost(EventHandler<IInspectable> const& handler) const;

// Revoke with event_token
static void SurfaceContentsLost(event_token const* cookie) const;

// Revoke with event_revoker
static CompositionTarget::SurfaceContentsLost_revoker SurfaceContentsLost(auto_revoke_t, EventHandler<IInspectable> const& handler) const;

public static event System.EventHandler<object> SurfaceContentsLost;

function onSurfaceContentsLost(eventArgs) { /* Your code */ }
Windows.UI.Xaml.Media.CompositionTarget.addEventListener("surfacecontentslost", onSurfaceContentsLost);
Windows.UI.Xaml.Media.CompositionTarget.removeEventListener("surfacecontentslost", onSurfaceContentsLost);
- or -
Windows.UI.Xaml.Media.CompositionTarget.onsurfacecontentslost = onSurfaceContentsLost;

Public Shared Custom Event SurfaceContentsLost As EventHandler(Of Object) 

事件类型

EventHandler<Object>

EventHandler<Object>

EventHandler<IInspectable>