Allocates a new [GtkRequisition-struct|GtkRequisition-struct] and initializes its elements to zero.
a new empty gtk.Requisition The newly allocated gtk.Requisition should be freed with Requisition.free.
ConstructionException GTK+ fails to create the object.
3.0
Allocates a new [GtkRequisition-struct|GtkRequisition-struct] and initializes its elements to zero.