connectPrepare
fun connectPrepare(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (page: Widget) -> Unit): <Error class: unknown class>
Emitted when a new page is set as the assistant's current page, before making the new page visible.
A handler for this signal can do any preparations which are necessary before showing @page.
Parameters
connectFlags
A combination of ConnectFlags
handler
the Callback to connect. Params: page the current page