using System.ComponentModel; using System.Windows.Forms; namespace BizHawk.WinForms.Controls { public abstract class GroupBoxExBase : GroupBox { public readonly RadioButtonGroupTracker Tracker; [Browsable(false)] [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] public new int TabIndex => base.TabIndex; [Browsable(false)] [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] public new bool TabStop => base.TabStop; protected GroupBoxExBase(out IRadioButtonReadOnlyTracker tracker) => tracker = Tracker = new RadioButtonGroupTracker(); } }