gtk:print-operation-allow-async (object)

object -- a gtk:print-operation object
allow-async -- true to allow asynchronous operation

The accessor for the allow-async slot of the gtk:print-operation class gets or sets whether the print operation may run asynchronously or not. That is, whether the gtk:print-operation-run function may return before the print operation is completed.

Note that some platforms may not allow asynchronous operation.