Regex: text between two characters

#region Using Directives

using System;
using System.Text.RegularExpressions;

#endregion

public class Example
{
    static void Main()
    {
        var regex = new Regex(@"(?<=\()(.*?)(?=\))",
                              RegexOptions.Singleline | RegexOptions.IgnoreCase);

        const string input = "I am (peter) smith I (want) to make a (regex)";
        var matches = regex.Matches(input);
        foreach (var match in matches)
        {
            Console.WriteLine(match.ToString());
        }
        Console.ReadLine();
    }
}

peter

want

regex