arguments hint

[Paul Pogonyshev]

Hi.

Is there a mode for Emacs that gives hints on function
arguments?  For instance, I type

  int result = function(

and immediatly after '(' is typed, Emacs shows in a
small window:

  int
  function(int x, int y, int z)

This way (provided that the arguments' names are chosen
well) I can avoid looking into a manual most of the time.

So is there anything similar to what I've described?
Such a mode would be very helpful when writing say GTK+
code.

Paul