On 03/04/09 04:10, Taylor Venable wrote:
>
> I have an xterm compiled with 256 color support. In Vim 7.2.88 after
> it loads up I can do :set t_Co to find that 256 color support is being
> found correctly (TERM = xterm-color). However, I cannot figure out
> how to determine whether 256 colors are supported on startup, as the
> value of t_Co is 8 at the time my .vimrc is loaded.
>
> I've tried a few autocommands, such as VimEnter and TermChanged but
> the value of t_Co in both of them is still 8, rather than the 256 I
> expect. At what point does t_Co get set to reflect the capabilities
> of the terminal, and how can I detect it during startup?
>
> Thanks,
>
Before sourcing your vimrc, Vim sets t_Co to the number of colors it
"thinks" your terminal has, according to $TERM and the (usually
built-in) termcap for that terminal. For an xterm-color this usually
means 8, as you noticed. If you are somehow certain that your terminal
supports more colors, you can set t_Co yourself.
At GUI startup, t_Co is set to the empty string from the builtin_gui
termcap, as it doesn't govern the number of colors (usually 16777216)
which can be used in the GUI.
Best regards,
Tony.
--
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