BEFORE-event args for WhiteboardState.PageSwitching$ — raised by WhiteboardState.SwitchPage before the active page changes. Cancel to stay on the current page.
Who is switching.
Set to true (in a synchronous handler) to veto the operation.
true
The page that is currently active.
The page about to become active.
BEFORE-event args for WhiteboardState.PageSwitching$ — raised by WhiteboardState.SwitchPage before the active page changes. Cancel to stay on the current page.