MediaCapture.FocusChanged Event

Definition

Occurs when the capture device changes focus.

// Register
event_token FocusChanged(TypedEventHandler<MediaCapture, MediaCaptureFocusChangedEventArgs const &> const& handler) const;

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

// Revoke with event_revoker
FocusChanged_revoker FocusChanged(auto_revoke_t, TypedEventHandler<MediaCapture, MediaCaptureFocusChangedEventArgs const &> const& handler) const;
public event TypedEventHandler<MediaCapture,MediaCaptureFocusChangedEventArgs> FocusChanged;
function onFocusChanged(eventArgs) { /* Your code */ }
mediaCapture.addEventListener("focuschanged", onFocusChanged);
mediaCapture.removeEventListener("focuschanged", onFocusChanged);
- or -
mediaCapture.onfocuschanged = onFocusChanged;
Public Custom Event FocusChanged As TypedEventHandler(Of MediaCapture, MediaCaptureFocusChangedEventArgs) 

Event Type

TypedEventHandler<MediaCapture,MediaCaptureFocusChangedEventArgs>

Windows 10 requirements

App capabilities
backgroundMediaRecording

Applies to