[#PSBTInput-2constructor-09]
= xref:PSBTInput.adoc[PSBTInput]::PSBTInput
:relfileprefix: ../
:mrdocs:

Construct an input for the given PSBT version and previous output.

== Synopsis

Declared in `<psbt.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
PSBTInput(
    uint32_t psbt_version,
    xref:Txid.adoc[Txid] const& prev_txid,
    uint32_t prev_out,
    std::optional<uint32_t> sequence = std::nullopt);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *psbt_version*
| The PSBT version (0 or 2).
| *prev_txid*
| The previous transaction id spent by this input.
| *prev_out*
| The previous output index spent by this input.
| *sequence*
| The optional sequence number.
|===


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