the paper name
the human-readable name
the paper width, in units of @unit
the paper height, in units of @unit
the unit for @width and @height. not %GTK_UNIT_NONE.
Return: a new #GtkPaperSize object, use gtk_paper_size_free() to free it
ConstructionException GTK+ fails to create the object.
2.10
Creates a new #GtkPaperSize object with the given parameters.