在Windows 8中使用Win32 API創建新的dekstop

Question

我正在嘗試編寫一個應用程序，它將使用Win32 API創建一個新的桌面。

下面的代碼可以在Windows 7中使用，但是在Windows 8中，使用桌面圖標和空白任務欄創建桌面。

public class Desktop 
{ 
    private const int NORMAL_PRIORITY_CLASS = 0x00000020; 

    private const long DF_ALLOWOTHERACCOUNTHOOK = 0x0001L; 

    private const uint DELETE = 0x00010000; 
    private const uint READ_CONTROL = 0x00020000; 
    private const uint WRITE_DAC = 0x00040000; 
    private const uint WRITE_OWNER = 0x00080000; 

    private const uint STANDARD_RIGHTS_REQUIRED = DELETE | READ_CONTROL | WRITE_DAC | WRITE_OWNER; 

    private const long DESKTOP_CREATEWINDOW = 0x0002L; 
    private const long DESKTOP_ENUMERATE = 0x0040L; 
    private const long DESKTOP_WRITEOBJECTS = 0x0080L; 
    private const long DESKTOP_SWITCHDESKTOP = 0x0100L; 
    private const long DESKTOP_CREATEMENU = 0x0004L; 
    private const long DESKTOP_HOOKCONTROL = 0x0008L; 
    private const long DESKTOP_READOBJECTS = 0x0001L; 
    private const long DESKTOP_JOURNALRECORD = 0x0010L; 
    private const long DESKTOP_JOURNALPLAYBACK = 0x0020L; 
    private const uint AccessRights = (uint)DESKTOP_JOURNALRECORD | 
     (uint)DESKTOP_JOURNALPLAYBACK | 
     (uint)DESKTOP_CREATEWINDOW | 
     (uint)DESKTOP_ENUMERATE | 
     (uint)DESKTOP_WRITEOBJECTS | 
     (uint)DESKTOP_SWITCHDESKTOP | 
     (uint)DESKTOP_CREATEMENU | 
     (uint)DESKTOP_HOOKCONTROL | 
     (uint)DESKTOP_READOBJECTS | 
     STANDARD_RIGHTS_REQUIRED; 

    private delegate bool EnumDesktopProc(string lpszDesktop, IntPtr lParam); 

    [DllImport("user32.dll")] 
    private static extern IntPtr GetProcessWindowStation(); 

    [DllImport("user32.dll")] 
    private static extern bool EnumDesktops(IntPtr hwinsta, EnumDesktopProc lpEnumFunc, IntPtr lParam); 

    [DllImport("user32.dll")] 
    public static extern IntPtr CreateDesktop(string desktopName, string device, string deviceMode, int flags, uint accessMask, [In] ref SECURITY_ATTRIBUTES attributes); 

    [DllImport("user32.dll")] 
    private static extern IntPtr OpenDesktop(string lpszDesktop, uint dwFlags, bool fInherit, uint dwDesiredAccess); 

    [DllImport("user32.dll")] 
    private static extern bool SwitchDesktop(IntPtr hDesktop); 

    [DllImport("kernel32.dll")] 
    private static extern bool CreateProcess(string lpApplicationName, string lpCommandLine, IntPtr lpProcessAttributes, IntPtr lpThreadAttributes, bool bInheritHandles, int dwCreationFlags, IntPtr lpEnvironment, string lpCurrentDirectory, ref STARTUPINFO lpStartupInfo, ref PROCESS_INFORMATION lpProcessInformation); 

    [StructLayout(LayoutKind.Sequential)] 
    public struct SECURITY_ATTRIBUTES 
    { 
     public int nLength; 
     public IntPtr lpSecurityDescriptor; 
     public int bInheritHandle; 
    } 

    [StructLayout(LayoutKind.Sequential)] 
    private struct STARTUPINFO 
    { 
     public int cb; 
     public string lpReserved; 
     public string lpDesktop; 
     public string lpTitle; 
     public int dwX; 
     public int dwY; 
     public int dwXSize; 
     public int dwYSize; 
     public int dwXCountChars; 
     public int dwYCountChars; 
     public int dwFillAttribute; 
     public int dwFlags; 
     public short wShowWindow; 
     public short cbReserved2; 
     public IntPtr lpReserved2; 
     public IntPtr hStdInput; 
     public IntPtr hStdOutput; 
     public IntPtr hStdError; 
    } 

    [StructLayout(LayoutKind.Sequential)] 
    private struct PROCESS_INFORMATION 
    { 
     public IntPtr hProcess; 
     public IntPtr hThread; 
     public int dwProcessId; 
     public int dwThreadId; 
    } 

    private static List<string> _desktops = new List<string>(); 

    public static IntPtr Create(string name) 
    { 
     var securityAttributes = new SECURITY_ATTRIBUTES(); 
     securityAttributes.nLength = Marshal.SizeOf(securityAttributes); 

     return CreateDesktop(name, null, null, (int) DF_ALLOWOTHERACCOUNTHOOK, AccessRights, ref securityAttributes); 
    } 

    public static IntPtr Open(string name) 
    { 
     return OpenDesktop(name, 0, false, AccessRights); 
    } 

    public static bool Show(IntPtr desktopPrt) 
    { 
     if (desktopPrt == IntPtr.Zero) return false; 
     return SwitchDesktop(desktopPrt); 
    } 

    public static void Prepare(string desktopName) 
    { 
     CreateProcess("C:\\Windows\\explorer.exe", desktopName); 
    } 

    public static bool Exists(string name) 
    { 
     return GetDesktops().Any(s => s == name); 
    } 

    private static void CreateProcess(string path, string desktopName) 
    { 
     STARTUPINFO si = new STARTUPINFO(); 
     si.cb = Marshal.SizeOf(si); 
     si.lpDesktop = desktopName; 

     PROCESS_INFORMATION pi = new PROCESS_INFORMATION(); 

     var lpCurrentDirectory = Path.GetDirectoryName(path); 
     CreateProcess(path, null, IntPtr.Zero, IntPtr.Zero, true, NORMAL_PRIORITY_CLASS, IntPtr.Zero, lpCurrentDirectory, ref si, ref pi); 
    } 

    private static string[] GetDesktops() 
    { 
     IntPtr windowStation = GetProcessWindowStation(); 
     if (windowStation == IntPtr.Zero) return new string[0]; 

     _desktops.Clear(); 

     bool result = EnumDesktops(windowStation, DesktopEnumProc, IntPtr.Zero); 
     if (!result) return new string[0]; 

     return _desktops.ToArray(); 
    } 

    private static bool DesktopEnumProc(string lpszDesktop, IntPtr lParam) 
    { 
     _desktops.Add(lpszDesktop); 
     return true; 
    } 
} 

用法：

var desktopName = "TestDesktop"; 
var desktopPrt = Desktop.Create(desktopName); 
Desktop.Show(desktopPrt); 
Desktop.Prepare(desktopName); 

Sysinternals的桌面應用程序（http://technet.microsoft.com/en-us/sysinternals/cc817881.aspx）使用相同的API，它在Windows 8中的作品所以一定要有，我失去了一些東西。

有沒有人有我的指針？或者是否有人知道我在哪裏可以找到如何使用此API的示例？ API調用的MSDN提供了大量信息，但沒有多少示例。

感謝; d

Answer 1

編輯： Sry基因，我意識到，你在你的代碼段運行，請忽略我的意見。

如何爲您創建的每個桌面顯式運行explorer.exe？那個處理圖標，任務欄等...... 當你運行SysInternals桌面應用程序時，你可以看到它實際上是這樣做的。