获取窗口句柄并且关闭应用程序代码,C#代码库,德仔网

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【C#】获取窗口句柄并且关闭应用程序
作者:哲滔 / 发布于2016/8/12/ 803
public 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);
        [DllImport("User32.dll", EntryPoint = "SendMessage")]
        private static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);
        Process[] processes;
        const int WM_CLOSE = 0x0010;
        public void GetCurrentWindowHandle()
        {
            Microsoft.Win32.RegistryKey oRegistryKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("Software").OpenSubKey("Amada Software");
            string[] subKeys = oRegistryKey.GetSubKeyNames();
            IntPtr ptrWnd = IntPtr.Zero;
            foreach (string subkey in subKeys)
            {
                processes = Process.GetProcessesByName(subkey);
                foreach (Process proc in processes)
                {
                    uint uiPid = (uint)proc.Id;
                    object objWnd = processWnd[uiPid];
                    if (objWnd != null)
                    {
                        ptrWnd = (IntPtr)objWnd;
                        if (ptrWnd != IntPtr.Zero && IsWindow(ptrWnd))
                        {
                            SendMessage(ptrWnd, WM_CLOSE, 0, 0);
                        }
                        else
                        {
                            ptrWnd = IntPtr.Zero;
                        }
                    }
                    bool bResult = EnumWindows(new WNDENUMPROC(EnumWindowsProc), uiPid);
                    if (!bResult && Marshal.GetLastWin32Error() == 0)
                    {
                        objWnd = processWnd[uiPid];
                        if (objWnd != null)
                        {
                            ptrWnd = (IntPtr)objWnd;
                            SendMessage(ptrWnd, WM_CLOSE, 0, 0);
                        }
                    }
                }
            }
        }
        private static bool EnumWindowsProc(IntPtr hwnd, uint lParam)
        {
            uint uiPid = 0;
            if (GetParent(hwnd) == IntPtr.Zero)
            {
                GetWindowThreadProcessId(hwnd, ref uiPid);
                if (uiPid == lParam)
                {
                    processWnd[uiPid] = hwnd;
                    SetLastError(0);
                    return false;
                }
            }
            return true;
        }
    }
试试其它关键字
　窗口句柄　　关闭应用程序　
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