[#wallet-DescriptorScriptPubKeyMan-CreateFromMigration]
= xref:wallet.adoc[wallet]::xref:wallet/DescriptorScriptPubKeyMan.adoc[DescriptorScriptPubKeyMan]::CreateFromMigration
:relfileprefix: ../../
:mrdocs:

Creates a DescriptorScriptPubKeyMan while migrating a legacy wallet.

== Synopsis

Declared in `<wallet/scriptpubkeyman.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
std::unique_ptr<DescriptorScriptPubKeyMan>
CreateFromMigration(
    xref:wallet/WalletStorage.adoc[WalletStorage]& storage,
    xref:wallet/WalletBatch.adoc[WalletBatch]& batch,
    xref:wallet/WalletDescriptor.adoc[WalletDescriptor]& descriptor,
    int64_t keypool_size,
    xref:FlatSigningProvider.adoc[FlatSigningProvider] const& provider);
----

== Return Value

The new DescriptorScriptPubKeyMan.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *storage*
| The wallet storage this spkm is bound to.
| *batch*
| The database batch to write the new spkm through.
| *descriptor*
| The wallet descriptor produced by the migration.
| *keypool_size*
| The number of keys/scripts to keep pre‐generated.
| *provider*
| The signing provider supplying keys for the descriptor.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#