[#CValidationInterface-BlockDisconnected]
= xref:CValidationInterface.adoc[CValidationInterface]::BlockDisconnected
:relfileprefix: ../
:mrdocs:

Notifies listeners of a block being disconnected Provides the block that was disconnected.

== Synopsis

Declared in `<validationinterface.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
BlockDisconnected(
    std::shared_ptr<CBlock const> const& block,
    xref:CBlockIndex.adoc[CBlockIndex] const* pindex);
----

== Description

Called on a background thread. Only called for the active chainstate, since background chainstates should never disconnect blocks.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *block*
| The block that was disconnected.
| *pindex*
| Block index entry for the disconnected block.
|===


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