+extern void higher(Client *c);
+extern void killclient(Arg *arg);
+extern void lower(Client *c);
+extern void manage(Window w, XWindowAttributes *wa);
+extern void maximize(Arg *arg);
+extern void pop(Client *c);
+extern void resize(Client *c, Bool inc, Corner sticky);
+extern void setgeom(Client *c);
+extern void setsize(Client *c);
+extern void settitle(Client *c);
+extern void unmanage(Client *c);
+extern void zoom(Arg *arg);