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namespace OpenMI.Standard
{
    public enum EArgType
    {
        String = 0, // default
        Bool,
        Int,
        Double,
        Path, // presummed to exist and accessable
        FilePath, // presummed to exist and accessable
        PathNew,
        FilePathNew,
        XML, // Rob: can be used together with a schema for complex argument data
        MIME, // Rob: might be useful to pass in images, or text documents, etc.
    }

    /// <summary>
    /// The IArgument interface defines a key - value pair. If the property ReadOnly is
    /// false the value is editable otherwise it is read-only.
    /// </summary>
    public interface IArgument : IDescribable
    {
        /// <summary>
        /// Type that string value represents and can be converted to
        /// </summary>
        EArgType ValueType { get; }

	/// <summary>
        /// The key (string) in key-value pair.
	/// </summary>
	string Key {get;}

	/// <summary>
        /// <para>The value (double) in key-value pair.</para>
        ///
        /// <para>If the ReadOnly property is true and the property is attempted to be changed
        /// from outside an exception must be thrown.</para>
	/// </summary>
	string Value { get; set; }

	/// <summary>
        /// Defines whether the Values property may be edited from outside.
	/// </summary>
	bool ReadOnly {get;}
    }
}

    public interface IArgument : IDescribable
    {
        string Key { get; }
        string Value { get; set; }
        bool ReadOnly { get; }
    }

    public interface IDescribable
    {
        string Caption { get; set; }
        string Description { get; set; }
    }

    public interface IValueDefinition : IDescribable
    {
        Type ValueType { get; }
        bool DescribesSameAs(IValueDefinition otherValueDefinition);
    }

    public interface IArgument : IValueDefinition
    {
         object Value { get; set; }
         bool ReadOnly { get; }
    }