Added the possibility to get a list of opened windows (#139)

PeyrSharp.UiHelpers/WindowHelpers.cs

@@ -0,0 +1,98 @@
+/*
+MIT License
+
+Copyright (c) Devyus
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE. 
+*/
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PeyrSharp.UiHelpers
+{
+	/// <summary>
+	/// Provides utility methods for working with windows.
+	/// </summary>
+	public static class WindowHelpers
+	{
+		/// <summary>
+		/// Retrieves a list of currently visible windows.
+		/// </summary>
+		/// <returns>A list of <see cref="WindowInfo"/> objects representing the visible windows.</returns>
+		public static List<WindowInfo> GetWindows()
+		{
+			List<WindowInfo> windowList = new List<WindowInfo>();
+			EnumWindows((hWnd, lParam) =>
+			{
+				if (IsWindowVisible(hWnd))
+				{
+					StringBuilder titleBuilder = new StringBuilder(256);
+					StringBuilder classNameBuilder = new StringBuilder(256);
+
+					GetWindowText(hWnd, titleBuilder, titleBuilder.Capacity);
+					GetClassName(hWnd, classNameBuilder, classNameBuilder.Capacity);
+
+					string title = titleBuilder.ToString();
+					string className = classNameBuilder.ToString();
+
+					windowList.Add(new WindowInfo
+					{
+						Handle = hWnd,
+						Name = title,
+						ClassName = className
+					});
+				}
+
+				return true;
+			}, IntPtr.Zero);
+
+			return windowList;
+		}
+
+		// ... (rest of the code)
+
+		private static bool IsWindowVisible(IntPtr hWnd)
+		{
+			return IsWindowVisibleCore(hWnd) && !IsIconic(hWnd);
+		}
+
+		[DllImport("user32.dll")]
+		[return: MarshalAs(UnmanagedType.Bool)]
+		private static extern bool IsWindowVisibleCore(IntPtr hWnd);
+
+		[DllImport("user32.dll")]
+		[return: MarshalAs(UnmanagedType.Bool)]
+		private static extern bool IsIconic(IntPtr hWnd);
+
+		[DllImport("user32.dll")]
+		[return: MarshalAs(UnmanagedType.Bool)]
+		private static extern bool EnumWindows(EnumWindowsProc enumProc, IntPtr lParam);
+		private delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam);
+
+		[DllImport("user32.dll")]
+		private static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count);
+
+		[DllImport("user32.dll")]
+		private static extern int GetClassName(IntPtr hWnd, StringBuilder className, int count);
+	}
+}