C#获取控制台句柄的技巧
发布时间：2021-11-23 15:48:16 所属栏目：教程 来源：互联网
导读：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 Hashtab
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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(); } } }  （编辑：东莞站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
