`TVirtualTreeColumn`
pt	ro	HasImage
pt	ro	ImageRect
	ro	Left
	ro	Owner
pl		Alignment
pl		BiDiMode
pl		CaptionAlignment
pl	ro	CaptionText
pl		CheckType
pl		CheckState
pl		CheckBox
pl		Color
pl		DefaultSortDirection
pl		Hint
pl		ImageIndex
pl		Layout
pl		Margin
pl		MaxWidth
pl		MinWidth
pl		Options
pl		Position
pl		Spacing
pl		Style
pl		Tag
pl		Text
pl		Width

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