constructor Create(AOwner: TComponent); override;
__fastcall virtual TCustomAction(System::Classes::TComponent* AOwner);
Instantiates and initializes a VCL TCustomAction object.
Applications do not need to call the constructor directly. Actions are created automatically when you add them to an action manager (in the Action Manager editor) or action list component (in the Action List editor) at design time.
AOwner is the component that is responsible for freeing the action. It becomes the value of the Owner property.