What is the best way to spellcheck in gvim? Is there an add-on or something?
Update:
I would like it to offer corrections as well.
What is the best way to spellcheck in gvim? Is there an add-on or something?
I would like it to offer corrections as well.
Use :set spell to turn on spell-checking.  If it's source code, gvim is smart enough to only spellcheck comments and string literals.  
:help spell will give you all the details.  Here are some excerpts:
To search for the next misspelled word:
]s           Move to next misspelled word after the cursor.
             A count before the command can be used to repeat.
             'wrapscan' applies.
[s           Like "]s" but search backwards, find the misspelled
             word before the cursor.  
Finding suggestions for bad words:
z=           For the word under/after the cursor, suggest correctly
             spelled words.
To add words to your own word list: zg Add word under the cursor as a good word
Also see :help set spelllang for information on changing your dictionary to include other regions, languages, or word sets (for example, medical jargon).
gvim must be compiled with |+syntax|.
Thanks to rmeador's comments for much of the above goodness.
Do :set spell to turn on spell-checking.  See :h spell for help and info about how spell-checking works and how to use different languages and dictionaries and such.
Just a note: you need vim 7 to get spell checking... That shouldn't be a problem, though, because it's been around long enough that even Debian stable uses it.
I started using
aspell
which comes with Cygwin (http://www.cygwin.com/). (It's a package, but the default install plus manually-added aspell is pretty tiny and quick to download.)
When I want to spell check the current file, I use a function defined in my .vimrc (or _vimrc) that saves the file, runs aspell on it, then reloads the file:
:function! SpellCheck()
:   w!
:   !c:\prog\cygwin\bin\aspell.exe --dont-backup check "%"
:   e! %
:endfunction
to use this function I just do:
:call SpellCheck()
It goes through the file just like Microsoft Word would, I exit, and then the file is reloaded with corrections.
Running aspell externally without having to move my mouse is integrated enough for me. I've never liked on-the-fly spell checking. I find it and things like IntelliSense distracting.