This enumeration specifies the icon types that can be displayed in a MessageBox . public enum MessageBoxIcon { None = 0 , Hand = 16 , Error = 16 , Stop = 16 , Question = 32 , Exclamation = 48 , Warning = 48 , Asterisk = 64 , Information = 64 } HierarchySystem.Object System.ValueType System.Enum(System.IComparabl, System.IFormattable , System.IConvertible) MessageBoxIcon Passed ToMessageBox.Show() |