[#BloombergLP-balm-MetricsManager-_04enum]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balm.adoc[balm]::xref:BloombergLP/balm/MetricsManager.adoc[MetricsManager]::Unnamed enum
:relfileprefix: ../../../
:mrdocs:

Callback handle constants&period;

== Synopsis

Declared in `&lt;balm&lowbar;metricsmanager&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
enum Unnamed enum;
----

== Members

[cols="1,4"]
|===
| Name| Description
| `e&lowbar;INVALID&lowbar;HANDLE` 
| An invalid callback handle&period;
| `BAEM&lowbar;INVALID&lowbar;HANDLE` 
| Deprecated alias for `e&lowbar;INVALID&lowbar;HANDLE`&period;
|===



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