onReady
open fun onReady( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (context: PrintContext) -> Unit): <Error class: unknown class>(source)
The ::ready signal gets emitted once per preview operation, before the first page is rendered.
A handler for this signal can be used for setup tasks.
Parameters
connectFlags
a combination of ConnectFlags
handler
the Callback to connect. Params: context the current GtkPrintContext