[#btck_NotifyHeaderTip]
= btck_NotifyHeaderTip
:mrdocs:

Callback invoked when a new best header tip is seen during sync.

== Synopsis

Declared in `<kernel/bitcoinkernel.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef void(* btck_NotifyHeaderTip)(void*, xref:btck_SynchronizationState.adoc[btck_SynchronizationState], int64_t, int64_t, int);
----


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