Emitted when printing is requested on web_view, usually by a JavaScript call, before the print dialog is shown.
This signal can be used to set the initial print settings and page setup of print_operation to be used as default values in
the print dialog. You can call set_print_settings and
set_page_setup and then return false
to propagate the event so that the print dialog is shown.
You can connect to this signal and return true to cancel the print operation or implement your own print dialog.
| print_operation |
the PrintOperation that will handle the print request |
|
true to stop other handlers from being invoked for the event. false to propagate the event further. |