gtk-box-child-packing (box child expand fill padding pack-type)

box -- a gtk-box container widget
child -- the gtk-widget child widget to set
expand -- a boolean with the value of the expand child property
fill -- a boolean with the value of the fill child property
padding -- an integer with the value of the padding child property
pack-type -- a value of the gtk-pack-type enumeration

Sets the way the child widget is packed into the box. In the Lisp binding you can use the gtk-box-child-expand, gtk-box-child-fill, gkt-box-child-padding, and gtk-box-child-pack-type functions to set the child properties. This function is implemented with these child accessor functions.