[#CoinsViewOverlay-StartFetching]
= xref:CoinsViewOverlay.adoc[CoinsViewOverlay]::StartFetching
:relfileprefix: ../
:mrdocs:

Start fetching inputs from block&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
&lsqb;&lsqb;nodiscard&rsqb;&rsqb;
xref:CCoinsViewCache/ResetGuard.adoc[ResetGuard]
StartFetching(xref:CBlock.adoc[CBlock] const& block) noexcept;
----

== Return Value

A guard that resets the overlay (stopping fetching) on destruction&period;

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====
== Parameters

[cols="1,4"]
|===
| Name| Description
| *block*
| Block whose input prevouts are queued for parallel fetching&period;
|===


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