Hi,
there's more detailed informaton here:

http://www.csounds.com/manual/html/csound5extending.html

You are looking for the section "OENTRY reference"

Cheers,
Andres

On 10/11/07, Gregory Cooksey <cooksey@cs.wisc.edu> wrote:
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> I've decided to write a primitive output opcode for w- spectral data.
> I can't figure out how to specify string arguments to opcodes.  Can
> this be done?
>
> I may not have found the right documentation on how to write plugin
> opcodes.  Can anybody point me to a good place to start and/or
> reference?  I've got Victor Lazzarini's article "Extensions to the
> Csound Language: from User-defined to Plugin Opcodes and Beyond".  Is
> there anything else out there?
>
> Thanks,
>
> - -Greg
>
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