gtk:clipboard-set-can-store (clipboard targets n-targets)

clipboard -- a gtk:clipboard object
targets -- array containing information about which forms should be stored or NULL to indicate that all forms should be stored
n-targets -- number of elements in targets

Hints that the clipboard data should be stored somewhere when the application exits or when the gtk:clipboard-store function is called. This value is reset when the clipboard owner changes. Where the clipboard data is stored is platform dependent, see the gdk:display-store-clipboard function for more information.