Defines the base class for all LCL TComponents including controls TLCLComponent - base class for LCL components WidgetSetClass - the set of Widgets to be used by this Component RemoveAllHandlersOfObject - part of clean-up procedure TLCLReferenceComponent - A base class for all components having a handle Handle a handle (sort of pointer or reference) allocated by the operating system to this component HandleAllocated - if True, a handle (reference) has been allocated to this component ReferenceAllocated - if True, a handle (reference) has been allocated to this component