Fires when RichEditControl starts or finishes displaying a document page.
public event EventHandler VisiblePagesChanged
Public Event VisiblePagesChanged As EventHandler
The VisiblePagesChanged event's data class is EventArgs.
The VisiblePagesChanged event occurs in scrolling and zooming. For example, when RichEditControl displays the document using the view of the PrintLayout type and scrolls it down, the VisiblePagesChanged event happens when the next page becomes visible, and occurs subsequently when the previous page is scrolled up and becomes invisible.