[#CExtKey-nChild]
= xref:CExtKey.adoc[CExtKey]::nChild
:relfileprefix: ../
:mrdocs:

Child index used to derive this key from its parent.

== Synopsis

Declared in `<key.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
unsigned int nChild;
----


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