create custom rendering extension

Hi,
I want to create a custom rendering extension based on a existing rendering,
I have seen in the MSDN that it is possible but the documentation is not
complet
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/RSPROG/htm/rsp_prog_extend_security_87oi.asp
If somebody know how i can do ...
Thanks in advance...here is an article from MSDN mag:
http://msdn.microsoft.com/msdnmag/issues/05/02/CustomRenderers/default.aspx
"blue-ice" <blueice@.discussions.microsoft.com> wrote in message
news:570C5B8F-50F3-4A58-9BB1-3790D5D72B7A@.microsoft.com...
> Hi,
> I want to create a custom rendering extension based on a existing
> rendering,
> I have seen in the MSDN that it is possible but the documentation is not
> complete
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/RSPROG/htm/rsp_prog_extend_security_87oi.asp
> If somebody know how i can do ...
> Thanks in advance...
>|||Thanks but I want create a new rendering extension based on the existing PDF
extension
"Dmitry Nechipor. [MCDBA]" wrote:
> here is an article from MSDN mag:
> http://msdn.microsoft.com/msdnmag/issues/05/02/CustomRenderers/default.aspx
>
> "blue-ice" <blueice@.discussions.microsoft.com> wrote in message
> news:570C5B8F-50F3-4A58-9BB1-3790D5D72B7A@.microsoft.com...
> > Hi,
> >
> > I want to create a custom rendering extension based on a existing
> > rendering,
> > I have seen in the MSDN that it is possible but the documentation is not
> > complete
> > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/RSPROG/htm/rsp_prog_extend_security_87oi.asp
> >
> > If somebody know how i can do ...
> >
> > Thanks in advance...
> >
>
>