Helen Borrie schrieb:

> At 11:11 AM 7/02/2005 +0100, you wrote:
>
>
>> Hello,
>>
>> is there any documentation how to implement blob filters with
>> Delphi?
>
>
> No.
>

:-(

>
> Then blob filters won't be easier. They are just a specialised sort
> of UDF. UDFs are easy or hard, depending on your confidence with
> using the techniques - you have to get your feet wet. There are docs
> around re writing UDFs in Delphi, which will be helpful to get you
> experimenting. You can find them by using the Website search at the
> IBPhoenix site.

I know these, and they indeed got me under way.

> You might not have seen this C example that Paul Beach and Ann
> Harrison contrived for the Firebird Conference in 2003::
> http://www.ibphoenix.com/main.nfs?a=ibphoenix&l=;PAGES;NAME='ibp_blob_filter'
>

Thanks. I don't know why this one slipped my eyes...
Due to the extensive comments on the action parameter sections this is
really helpful even for a Delphi guy