TControl.Constraints
From OpenEUO
RO Constraints : TSizeConstraints Specifies the size constraints for the control.
Use Constraints to specify the minimum and maximum width and height of the control. When Constraints contains maximum or minimum values, the control cannot be resized to violate those constraints. Warning: Do not set up constraints that conflict with the value of the Align or Anchors property. When these properties conflict, the response of the control to resize attempts is not well-defined.
