C# 通过进程名/进程Id 操作窗口/程序

1     private boolIsWindowExist(IntPtr handle)
2 {
3         return (!(GetWindow(new HandleRef(this, handle), 4) != IntPtr.Zero) && IsWindowVisible(new HandleRef(this, handle)));
4 }
5 
6     [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
7     public static extern IntPtr GetWindow(HandleRef hWnd, intuCmd);
8 
9     [DllImport("user32.dll", CharSet =CharSet.Auto)]
10     public static extern bool IsWindowVisible(HandleRef hWnd);

1     /// <summary>
2     ///获取应用程序窗口句柄
3     /// </summary>
4     /// <param name="processId"></param>
5     /// <returns></returns>
6     private IntPtr GetWindowHandle(intprocessId)
7 {
8         var windowHandle =IntPtr.Zero;
9         EnumThreadWindowsCallback windowsCallback = newEnumThreadWindowsCallback(FindMainWindow);
10 EnumWindows(windowsCallback, IntPtr.Zero);
11         //保持循环
12 GC.KeepAlive(windowsCallback);
13 
14         boolFindMainWindow(IntPtr handle, IntPtr extraParameter)
15 {
16             intnum;
17             GetWindowThreadProcessId(new HandleRef(this, handle), outnum);
18             if (num == processId &&IsWindowExist(handle))
19 {
20                 windowHandle =handle;
21                 return true;
22 }
23             return false;
24 }
25 
26         returnwindowHandle;
27 }
28     public delegate boolEnumThreadWindowsCallback(IntPtr hWnd, IntPtr lParam);
29 
30     [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
31     public static extern boolEnumWindows(EnumThreadWindowsCallback callback, IntPtr extraData);
32 
33     [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
34     public static extern int GetWindowThreadProcessId(HandleRef handle, out int processId);

1     /// <summary>
2     ///关闭程序主窗口
3     /// </summary>
4     /// <param name="processId">进程ID</param>
5     public void CloseWindow(intprocessId)
6 {
7         var mwh =GetWindowHandle(processId);
8         SendMessage(mwh, MW_CLOSE, 0, 0);
9 }
10     const int MW_CLOSE = 0x0010;
11 
12     [DllImport("User32.dll", EntryPoint = "SendMessage")]
13     private static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);

1         public void CloseAllWindows(stringprocessName)
2 {
3             Process[] processList =Process.GetProcessesByName(processName);
4             foreach (Process process inprocessList)
5 {
6 CloseMainWindow(process.Id);
7 }
8         }

1     /// <summary>
2     ///关闭所有进程
3     /// </summary>
4     /// <param name="processName"></param>
5     /// <returns></returns>
6     public static bool CloseAllProcesses(stringprocessName)
7 {
8         try
9 {
10             Process[] psEaiNotes =Process.GetProcessesByName(processName);
11             foreach (Process psEaiNote inpsEaiNotes)
12 {
13 psEaiNote.Kill();
14 }
15 }
16         catch
17 {
18             return false;
19 }
20 
21         return true;
22     }

1     string appFileName =currentClientProcess.MainModule.FileName;
2 
3     Process newClient = newProcess();
4     newClient.StartInfo.FileName =appFileName;
5     //设置要启动的进程的初始目录
6     newClient.StartInfo.WorkingDirectory =System.Windows.Forms.Application.ExecutablePath;
7     
8     //启动程序
9 currentClientProcess.Kill();
10     newClient.Start();