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API > API/Plugins > API/Plugins/ControlRig > API/Plugins/ControlRig/Rigs > API/Plugins/ControlRig/Rigs/URigHierarchy
| Type | Name | Description | |
|---|---|---|---|
 |
FRigHierarchyMetadataChangedDelegate & | Returns the MetadataChanged event, which can be used to track metadata changes Note: This notification has a very high volume - so the consequences of subscribing to it may cause performance slowdowns. | |
 |
void | OnMetadataChanged
(
const FRigElementKey& InKey, |