TVirtualNodeStates

type TVirtualNodeStates = set of (

  vsInitialized,

  vsChecking,

  vsCutOrCopy,

  vsDisabled,

  vsDeleting,

  vsExpanded,

  vsHasChildren,

  vsVisible,

  vsSelected,

  vsOnFreeNodeCallRequired,

  vsAllChildrenHidden,

  vsClearing,

  vsMultiline,

  vsHeightMeasured,

  vsToggling,

  vsFiltered

);