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Re: How to detect X?by chb (Deacon) |
| on Feb 21, 2005 at 03:58 UTC ( [id://432977]=note: print w/replies, xml ) | Need Help?? |
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Usually one checks for the environment variable DISPLAY. If its defined and contains a nonempty string, you can assume a x-server is running. It is not completely reliable, AFAIK, but it is a good guess (for example, opening a window can fail even if you have DISPLAY set, on many systems you need additional authentication stuff).
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