ref: 2e921a4b2dba62b849b1b9be8abaca8db1ef7872 dir: /fns.h/
#define HZ2MS(hz) (1000/(hz)) /* * alloc */ void *emalloc(ulong); void *erealloc(void*, ulong); Image *eallocimage(Display*, Rectangle, ulong, int, ulong);