[#TxGraph-SetTransactionFee]
= xref:TxGraph.adoc[TxGraph]::SetTransactionFee
:relfileprefix: ../
:mrdocs:

Modify the fee of the specified transaction, in both the main graph and the staging graph if it exists. Wherever the transaction does not exist (or was removed), this has no effect.

== Synopsis

Declared in `<txgraph.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
SetTransactionFee(
    xref:TxGraph/Ref.adoc[Ref] const& arg,
    int64_t fee) noexcept = 0;
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *arg*
| Reference to the transaction whose fee is changed.
| *fee*
| New fee for the transaction.
|===


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