Determines how widgets should be packed insided menubars and
menuitems contained in menubars.
GTK_PACK_DIRECTION_LTR
Widgets are packed left-to-right.
GTK_PACK_DIRECTION_RTL
Widgets are packed right-to-left.
GTK_PACK_DIRECTION_TTB
Widgets are packed top-to-bottom.
GTK_PACK_DIRECTION_BTT
Widgets are packed bottom-to-top.
Determines how widgets should be packed insided menubars and menuitems contained in menubars. GTK_PACK_DIRECTION_LTR Widgets are packed left-to-right. GTK_PACK_DIRECTION_RTL Widgets are packed right-to-left. GTK_PACK_DIRECTION_TTB Widgets are packed top-to-bottom. GTK_PACK_DIRECTION_BTT Widgets are packed bottom-to-top.