ResizeObserverCallback Delegate
https://drafts.csswg.org/resize-observer-1/#callbackdef-resizeobservercallback
public delegate void ResizeObserverCallback(IReadOnlyList<ResizeObserverEntry> entries, ResizeObserver observer)Parameters
entriesIReadOnlyList<ResizeObserverEntry>- The entries of the observed elements whose size changed.
observerResizeObserver- The observer.