[#CKey-data]
= xref:CKey.adoc[CKey]::data
:relfileprefix: ../
:mrdocs:

Pointer to the first key byte, or nullptr if the key is invalid&period;

== Synopsis

Declared in `&lt;key&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::byte const*
data() const;
----

== Return Value

A pointer to the first key byte, or nullptr if the key is invalid&period;


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