Zzz – Rev 1

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using System;
using System.Collections.Generic;
using System.Text;

namespace Zzz.Utilities
{
    public static class Helpers
    {
        #region Public Methods

        /// <summary> Find all windows that match the given filter </summary>
        /// <param name="filter">
        ///     A delegate that returns true for windows
        ///     that should be returned and false for windows that should
        ///     not be returned
        /// </param>
        public static IEnumerable<IntPtr> FindWindows(Natives.EnumWindowsProc filter)
        {
            var windows = new List<IntPtr>();

            Natives.EnumWindows(delegate(IntPtr wnd, IntPtr param)
            {
                if (filter(wnd, param))
                {
                    // only add the windows that pass the filter
                    windows.Add(wnd);
                }

                // but return true here so that we iterate all windows
                return true;
            }, IntPtr.Zero);

            return windows;
        }

        public static string GetWindowTitle(IntPtr hWnd)
        {
            var length = Natives.GetWindowTextLength(hWnd) + 1;
            var title = new StringBuilder(length);
            Natives.GetWindowText(hWnd, title, length);
            return title.ToString();
        }

        #endregion
    }
}

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