CompositionTarget.SurfaceContentsLost Event
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Occurs when an underlying major change occurs, such as a DirectX device change. Typically the application must regenerate its surface contents when notified of this event.
// 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 */ }
Microsoft.UI.Xaml.Media.CompositionTarget.addEventListener("surfacecontentslost", onSurfaceContentsLost);
Microsoft.UI.Xaml.Media.CompositionTarget.removeEventListener("surfacecontentslost", onSurfaceContentsLost);
- or -
Microsoft.UI.Xaml.Media.CompositionTarget.onsurfacecontentslost = onSurfaceContentsLost;Public Shared Custom Event SurfaceContentsLost As EventHandler(Of Object)