the GtkWidget using @manager
the orientation to measure
Size for the opposite of @orientation; for instance, if the @orientation is %GTK_ORIENTATION_HORIZONTAL, this is the height of the widget; if the @orientation is %GTK_ORIENTATION_VERTICAL, this is the width of the widget. This allows to measure the height for the given width, and the width for the given height. Use -1 if the size is not known
the minimum size for the given size and orientation
the natural, or preferred size for the given size and orientation
the baseline position for the minimum size
the baseline position for the natural size
Measures the size of the @widget using @manager, for the given @orientation and size.
See the [class@Gtk.Widget] documentation on layout management for more details.