get_error
Description:
Call this when the result of a print operation is gtk_print_operation_result_error.
It can be called either after [method@Gtk.PrintOperation.run] returns, or in the [signal@Gtk.PrintOperation:GtkPrintOperation:done
] signal handler.
The returned `GError` will contain more details on what went wrong.
Parameters:
| this |
a `GtkPrintOperation` |