TControl.SendToBackMoves all sibling controls in front of this control.DeclarationSource position: controls.pp line 1660 public procedure TControl.SendToBack;DescriptionUse SendToBack to move the control beneath all other sibling controls on the Parent. Only those portions of the control not covered by other controls will be visible. Calls SetZOrder to move the position for the control on the z-axis (depth) to the maximum Integer value for the platform. Use BringToFront to move a control to the top of the Z-axis on the Parent control. Use SetChildZPosition in TWinControl to move a child control to a specific position on the Z-axis where 0 is the top and MaxInt is the bottom of the Z-order.