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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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namespace UWPHook
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{
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/// <summary>
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/// Functions to manage UWP apps
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/// </summary>
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static class AppManager
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{
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private static int id;
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/// <summary>
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/// Launch a UWP App using a ApplicationActivationManager and sets a internal id to launched proccess id
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/// </summary>
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/// <param name="aumid">The AUMID of the app to launch</param>
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public static void LaunchUWPApp(string[] args)
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{
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string aumid = args[1]; // We receive the args from Steam,
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// 0 is application location,
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// 1 is the aumid, the rest are extras
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var mgr = new ApplicationActivationManager();
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uint processId;
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string extra_args = String.Join(" ", args.Skip(2)
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.Take(args.Length - 2)
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.Select(eachElement => eachElement.Clone()
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).ToArray());
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try
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{
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mgr.ActivateApplication(aumid, extra_args, ActivateOptions.None, out processId);
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//Bring the launched app to the foreground, this fixes in-home streaming
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id = (int)processId;
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BringProcess();
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}
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catch (Exception e)
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{
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throw new Exception("Error while trying to launch your app." + Environment.NewLine + e.Message);
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}
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}
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/// <summary>
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/// Checks if the launched app is running
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/// </summary>
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/// <returns>True if the perviously launched app is running, false otherwise</returns>
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public static Boolean IsRunning()
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{
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//If 0, no app was launched most probably
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if (id == 0)
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{
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return false;
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}
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try
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{
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Process.GetProcessById(id);
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}
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catch (Exception)
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{
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return false;
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}
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return true;
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}
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/// <summary>
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/// Gets a list of installed UWP Apps on the system, containing each app name + AUMID, separated by '|'
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/// </summary>
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/// <returns>List of installed UWP Apps</returns>
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public static List<String> GetInstalledApps()
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{
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List<String> result = null;
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var assembly = Assembly.GetExecutingAssembly();
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//Load the powershell script to get installed apps
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var resourceName = "UWPHook.Resources.GetAUMIDScript.ps1";
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try
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{
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using (Stream stream = assembly.GetManifestResourceStream(resourceName))
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{
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using (StreamReader reader = new StreamReader(stream))
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{
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//Every entry is listed separated by ;
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result = ScriptManager.RunScript(reader.ReadToEnd()).Split(';').ToList<string>();
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}
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}
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}
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catch (Exception e)
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{
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throw new Exception("Error trying to get installed apps on your PC " + Environment.NewLine + e.Message, e.InnerException);
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}
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return result;
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}
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/// <summary>
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/// Try to convert an aumid into a human-readable app name
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/// </summary>
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/// <param name="appName">Application user model ID (aumid)</param>
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/// <param name="readableName">User-friendly app name</param>
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/// <returns>Whether this is a known app</returns>
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public static bool IsKnownApp(string appName, out string readableName)
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{
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string appsJson = File.ReadAllText(@"Resources\KnownApps.json");
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var apps = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, string>>(appsJson);
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foreach (var kvp in apps)
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{
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if (appName.StartsWith(kvp.Key + "_"))
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{
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readableName = kvp.Value;
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return true;
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}
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}
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readableName = null;
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return false;
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}
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[DllImport("user32.dll")]
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private static extern
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bool SetForegroundWindow(IntPtr hWnd);
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[DllImport("user32.dll")]
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private static extern
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bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);
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[DllImport("user32.dll")]
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private static extern
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bool IsIconic(IntPtr hWnd);
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public static void BringProcess()
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{
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/*
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const int SW_HIDE = 0;
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const int SW_SHOWNORMAL = 1;
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const int SW_SHOWMINIMIZED = 2;
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const int SW_SHOWMAXIMIZED = 3;
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const int SW_SHOWNOACTIVATE = 4;
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const int SW_RESTORE = 9;
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const int SW_SHOWDEFAULT = 10;
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*/
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var me = Process.GetCurrentProcess();
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var arrProcesses = Process.GetProcessById(id);
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// get the window handle
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IntPtr hWnd = arrProcesses.MainWindowHandle;
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// if iconic, we need to restore the window
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if (IsIconic(hWnd))
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{
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ShowWindowAsync(hWnd, 3);
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}
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// bring it to the foreground
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SetForegroundWindow(hWnd);
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}
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}
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public enum ActivateOptions
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{
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None = 0x00000000, // No flags set
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DesignMode = 0x00000001, // The application is being activated for design mode, and thus will not be able to
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// to create an immersive window. Window creation must be done by design tools which
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// load the necessary components by communicating with a designer-specified service on
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// the site chain established on the activation manager. The splash screen normally
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// shown when an application is activated will also not appear. Most activations
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// will not use this flag.
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NoErrorUI = 0x00000002, // Do not show an error dialog if the app fails to activate.
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NoSplashScreen = 0x00000004, // Do not show the splash screen when activating the app.
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}
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[ComImport, Guid("2e941141-7f97-4756-ba1d-9decde894a3d"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
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interface IApplicationActivationManager
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{
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// Activates the specified immersive application for the "Launch" contract, passing the provided arguments
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// string into the application. Callers can obtain the process Id of the application instance fulfilling this contract.
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IntPtr ActivateApplication([In] String appUserModelId, [In] String arguments, [In] ActivateOptions options, [Out] out UInt32 processId);
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IntPtr ActivateForFile([In] String appUserModelId, [In] [MarshalAs(UnmanagedType.Interface, IidParameterIndex = 2)] /*IShellItemArray* */ IShellItemArray itemArray, [In] String verb, [Out] out UInt32 processId);
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IntPtr ActivateForProtocol([In] String appUserModelId, [In] IntPtr /* IShellItemArray* */itemArray, [Out] out UInt32 processId);
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}
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[ComImport, Guid("45BA127D-10A8-46EA-8AB7-56EA9078943C")]//Application Activation Manager
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class ApplicationActivationManager : IApplicationActivationManager
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{
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[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)/*, PreserveSig*/]
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public extern IntPtr ActivateApplication([In] String appUserModelId, [In] String arguments, [In] ActivateOptions options, [Out] out UInt32 processId);
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[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
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public extern IntPtr ActivateForFile([In] String appUserModelId, [In] [MarshalAs(UnmanagedType.Interface, IidParameterIndex = 2)] /*IShellItemArray* */ IShellItemArray itemArray, [In] String verb, [Out] out UInt32 processId);
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[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
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public extern IntPtr ActivateForProtocol([In] String appUserModelId, [In] IntPtr /* IShellItemArray* */itemArray, [Out] out UInt32 processId);
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}
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[ComImport]
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[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
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[Guid("43826d1e-e718-42ee-bc55-a1e261c37bfe")]
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interface IShellItem
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{
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}
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[ComImport]
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[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
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[Guid("b63ea76d-1f85-456f-a19c-48159efa858b")]
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interface IShellItemArray
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{
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}
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}
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