Control style bit flags are used to categorize supported behavior. A control can enable a style by calling the Control.SetStyle(ControlStyles, bool) method and passing in the appropriate System.Windows.Forms.ControlStyles bit (or bits) and the Boolean value to set the bit(s) to. To determine the value assigned to a specified System.Windows.Forms.ControlStyles bit, use the Control.GetStyle(ControlStyles) method and pass in the System.Windows.Forms.ControlStyles member to evaluate.