[#CTxMemPool-StartBlockBuilding]
= xref:CTxMemPool.adoc[CTxMemPool]::StartBlockBuilding
:relfileprefix: ../
:mrdocs:

Begin building a block by creating the block builder from the transaction graph.

== Synopsis

Declared in `<txmempool.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[requires_capability(0x7fb95f557928), requires_capability(0x7fb968bc9038), requires_capability(0x7fb95fdd2e78), requires_capability(0x7fb978b78238), requires_capability(0x7fb96b8fd798), requires_capability(0x7fb96e5c4268), requires_capability(0x7fb97a07e298), requires_capability(0x7fb96be45fe8)]]
void
StartBlockBuilding() const;
----


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