[#EVP_KEYEXCH_gettable_ctx_params]
= EVP&lowbar;KEYEXCH&lowbar;gettable&lowbar;ctx&lowbar;params
:mrdocs:

Return the context parameters that can be read from a key&hyphen;exchange algorithm&period;

== Synopsis

Declared in `&lt;openssl&sol;evp&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:OSSL_PARAM.adoc[OSSL&lowbar;PARAM] const*
EVP&lowbar;KEYEXCH&lowbar;gettable&lowbar;ctx&lowbar;params(xref:EVP_KEYEXCH.adoc[EVP&lowbar;KEYEXCH] const* keyexch);
----

== Return Value

Array of OSSL&lowbar;PARAM descriptors terminated by OSSL&lowbar;PARAM&lowbar;END, or NULL&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *keyexch*
| Key&hyphen;exchange method to query&period;
|===


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