To avoid the "Hit ENTER or type command to continue" message, I suggest that you'd better set your command line height to 2 or more, because many function definitions have a long width. Add this to your vimrc: Now, when you are editing a file, exit to normal mode, and type _F to see which is the current function. If you want to know or add some parameters followed by the definition, just type CTRL-O () to jump to the definition, and type `k can jump back. .cs, .pas, .c, .sql filetype is supported with this trick.