HelenOS sources

wnd_sysmenu_left  106 uspace/lib/ui/src/window.c static void wnd_sysmenu_left(ui_menu_t *, void *, sysarg_t);
wnd_sysmenu_left  112 uspace/lib/ui/src/window.c 	.left = wnd_sysmenu_left,
HelenOS homepage, sources at GitHub