ref: 034cb6685100baa4452c9f2d3e445f6f1f7d5bf4 dir: /fns.h/
#define HZ2MS(hz) (1000/(hz)) /* * alloc */ void *emalloc(ulong); void *erealloc(void*, ulong); Image *eallocimage(Display*, Rectangle, ulong, int, ulong);