1.创建类User32API.cs，代码如下：

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Runtime.InteropServices;

using System.Collections;

namespace XXX

{

class User32API

{

private static Hashtable processWnd = null;

public delegate bool WNDENUMPROC(IntPtr hwnd, uint lParam);

static User32API()

{

if (processWnd == null)

{

processWnd = new Hashtable();

}

}

[DllImport("user32.dll", EntryPoint = "EnumWindows", SetLastError = true)]

public static extern bool EnumWindows(WNDENUMPROC lpEnumFunc, uint lParam);

[DllImport("user32.dll", EntryPoint = "GetParent", SetLastError = true)]

public static extern IntPtr GetParent(IntPtr hWnd);

[DllImport("user32.dll", EntryPoint = "GetWindowThreadProcessId")]

public static extern uint GetWindowThreadProcessId(IntPtr hWnd, ref uint lpdwProcessId);

[DllImport("user32.dll", EntryPoint = "IsWindow")]

public static extern bool IsWindow(IntPtr hWnd);

[DllImport("kernel32.dll", EntryPoint = "SetLastError")]

public static extern void SetLastError(uint dwErrCode);

public static IntPtr GetCurrentWindowHandle()

{

IntPtr ptrWnd = IntPtr.Zero;

uint uiPid = (uint)System.Diagnostics.Process.GetCurrentProcess().Id;  // 当前进程 ID

object objWnd = processWnd[uiPid];

if (objWnd != null)

{

ptrWnd = (IntPtr)objWnd;

if (ptrWnd != IntPtr.Zero && IsWindow(ptrWnd))  // 从缓存中获取句柄

{

return ptrWnd;

}

else

{

ptrWnd = IntPtr.Zero;

}

}

bool bResult = EnumWindows(new WNDENUMPROC(EnumWindowsProc), uiPid);

// 枚举窗口返回 false 并且没有错误号时表明获取成功

if (!bResult && Marshal.GetLastWin32Error() == 0)

{

objWnd = processWnd[uiPid];

if (objWnd != null)

{

ptrWnd = (IntPtr)objWnd;

}

}

return ptrWnd;

}

private static bool EnumWindowsProc(IntPtr hwnd, uint lParam)

{

uint uiPid = 0;

if (GetParent(hwnd) == IntPtr.Zero)

{

GetWindowThreadProcessId(hwnd, ref uiPid);

if (uiPid == lParam)    // 找到进程对应的主窗口句柄

{

processWnd[uiPid] = hwnd;   // 把句柄缓存起来

SetLastError(0);    // 设置无错误

return false;   // 返回 false 以终止枚举窗口

}

}

return true;

}

}

}

2.调用类User32API获取控制台句柄的代码：

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace XXXX

{

class XXX

{

static void Main(string[] args)

{

IntPtr hwnd=User32API.GetCurrentWindowHandle();//获取句柄

Console.WriteLine("{0} ", hwnd);

Console.ReadLine();

}

}

}