MediaCapture.FocusChanged Event
Definition
Important
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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
MediaCapture::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
Windows requirements
| App capabilities |
backgroundMediaRecording
|