HelenOS sources

wd_sysmenu_left    80 uspace/lib/ui/src/window.c static void wd_sysmenu_left(ui_wdecor_t *, void *, sysarg_t);
wd_sysmenu_left    94 uspace/lib/ui/src/window.c 	.sysmenu_left = wd_sysmenu_left,
HelenOS homepage, sources at GitHub