RE: Showing all sequences bound to a prefix?

[Drew Adams]

> > how can you know all keybindings which start with a key? 
> For instance,
> > "C-h c" asks me to enter a key. If I enter "C-w" it waits for more
> > input, which means that "C-w" is a prefix.
> 
> Use C-h, e.g. `C-x r C-h' will show you all key bindings starting with
> `C-x r'.

That doesn't always work. Try C-s C-h, for instance.