/// <summary>Specifies constants defining which information to display.</summary>
public enum MessageBoxIcon
{
/// <summary>The message box contains no symbols.</summary>
None = 0,
/// <summary>The message box contains a symbol consisting of white X in a circle with a red background.</summary>
Error = 16, // iconic: circle-x
/// <summary>The message box contains a symbol consisting of a white X in a circle with a red background.</summary>
Hand = 16, // iconic: circle-x
/// <summary>The message box contains a symbol consisting of white X in a circle with a red background.</summary>
Stop = 16, // iconic: circle-x
/// <summary>The message box contains a symbol consisting of a question mark in a circle. The question mark message icon is no longer recommended because it does not clearly represent a specific type of message and because the phrasing of a message as a question could apply to any message type. In addition, users can confuse the question mark symbol with a help information symbol. Therefore, do not use this question mark symbol in your message boxes. The system continues to support its inclusion only for backward compatibility.</summary>
Question = 32, // iconic: circle + question-mark
/// <summary>The message box contains a symbol consisting of an exclamation point in a triangle with a yellow background.</summary>
Exclamation = 48, //iconic: warning
/// <summary>The message box contains a symbol consisting of an exclamation point in a triangle with a yellow background.</summary>
Warning = 48, //iconic: warning
/// <summary>The message box contains a symbol consisting of a lowercase letter i in a circle.</summary>
Asterisk = 64, //iconic: circle +info
/// <summary>The message box contains a symbol consisting of a lowercase letter i in a circle.</summary>
Information = 64, //iconic: circle +info
}