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BPI_FDM_ComponentOwner (Blueprint Interface)

BPI_FDM_ComponentOwner is an optional interface that can be implemented by the owner of AC_FDM_Component to provide a reference to an externally managed FDM Widget instance. By default, Flexible Directional Menu can spawn and manage its own main UI wrapper (WBP_FDM_MainHUD) and retrieve the internal WBP_FDM_Widget automatically. This behavior is controlled by the Use System Defined Main Widget option in the primary config. When Use System Defined Main Widget is disabled, the system expects the project to provide its own instance of WBP_FDM_Widget. In this case, the component cannot assume where or how the widget is created, and therefore relies on the BPI_FDM_ComponentOwner interface to retrieve it. This interface has a single function: Get FDM Widget\ image50

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When should this interface be implemented?

You should implement BPI_FDM_ComponentOwner if:
  • You are embedding WBP_FDM_Widget into your own main HUD (e.g. WBP_GameplayHUD),
  • You have disabled Use System Defined Main Widget in the config,
  • Or your UI hierarchy is custom and the component cannot automatically find the menu widget.
In typical advanced UI setups, the project already has a main gameplay HUD widget that contains all major UI elements such as health, ammo, minimap, and other interface systems. In such cases, the Flexible Directional Menu widget is expected to be part of this main HUD rather than being created and added to the viewport by the component. The BPI_FDM_ComponentOwner interface allows the component to retrieve this externally managed widget instance in a clean, decoupled, and architecture-agnostic way.