gtk:print-operation-n-pages (object)

object -- a gtk:print-operation object
npages -- an integer for the number of pages

The accessor for the n-pages slot of the gtk:print-operation class gets or sets the number of pages in the document. This must be set to a positive number before the rendering starts. It may be set in a "begin-print" signal handler. Note that the page numbers passed to the "request-page-setup" and "draw-page" signal handlers are 0-based, that is, if the user chooses to print all pages, the last "draw-page" signal will be for page npages - 1.