Hello,

You can read an article about how to write UDF libraries in Delphi here:
http://dn.codegear.com/he/article/27204
http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_howto5

Sources of FreeUDFLib in Delphi with examples how to work with Date/Time
available here:
http://www.ibase.ru/download/freeudflib.zip

--
With best regards,
Alex Gilev,
http://www.xstarter.com/firebird-interbase-job-scheduler.html

2007/11/27, Orhan TURHAN <oturhan@...>:

>
> i want to write a udf with delphi.
>
> function name is EndOfTheMonth.
>
> input variable date,
> output variable date,
>

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