[#OSSL_DECODER_gettable_params]
= OSSL_DECODER_gettable_params
:mrdocs:

Return descriptors for parameters that can be retrieved from a decoder.

== Synopsis

Declared in `<openssl/decoder.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:OSSL_PARAM.adoc[OSSL_PARAM] const*
OSSL_DECODER_gettable_params(xref:OSSL_DECODER.adoc[OSSL_DECODER]* decoder);
----

== Return Value

OSSL_PARAM array of gettable parameter descriptors, or NULL if none.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *decoder*
| Decoder to query.
|===


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