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API > API/Runtime > API/Runtime/InteractiveToolsFramework > API/Runtime/InteractiveToolsFramework/FWatchablePropertySet > API/Runtime/InteractiveToolsFramework/FWatchablePropertySet/WatchProperty
References
| Module | InteractiveToolsFramework |
| Header | /Engine/Source/Runtime/InteractiveToolsFramework/Public/InteractiveTool.h |
| Include | #include "InteractiveTool.h" |
template<typename PropType>
int32 WatchProperty
&40;
typename TPropertyWatcher< PropType >::FValueGetter GetValueIn,
typename TPropertyWatcher< PropType >::FChangedCallback OnChangedIn
&41;
Index of the watcher, which can be used in SilentUpdateWatcherAtIndex