C# 如何将焦点设置到另一个窗口？

我对一个失去焦点的程序有问题。这不是我的节目。如何编写第二个程序，每1-2秒将焦点设置到该窗口？有可能做到这一点吗？

如果您想带来其他程序/进程，可以使用以下Win32 API

        [DllImport("user32.dll")]
        static extern bool SetForegroundWindow (IntPtr hWnd);

         private void BringToFront(Process pTemp)
         {
           SetForegroundWindow(pTemp.MainWindowHandle);
         }

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使用spy++或其他ui工具查找要聚焦的窗口的类名，例如：focusWindowClassName。然后添加以下功能：

[DllImport("USER32.DLL")]
public static extern bool SetForegroundWindow(IntPtr hWnd);

[System.Runtime.InteropServices.DllImport("User32.dll")]
 public static extern bool ShowWindow(IntPtr handle, int nCmdShow);

[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

//Then:
// [Edit] Changed IntPrt to IntPtr
IntPtr hWnd = FindWindow("focusWindowClassName", null); // this gives you the handle of the window you need.

// then use this handle to bring the window to focus or forground(I guessed you wanted this).

// sometimes the window may be minimized and the setforground function cannot bring it to focus so:

/*use this ShowWindow(IntPtr handle, int nCmdShow);
*there are various values of nCmdShow 3, 5 ,9. What 9 does is: 
*Activates and displays the window. If the window is minimized or maximized, *the system restores it to its original size and position. An application *should specify this flag when restoring a minimized window */

ShowWindow(hWnd, 9); 
//The bring the application to focus
SetForegroundWindow(hWnd);

// you wanted to bring the application to focus every 2 or few second
// call other window as done above and recall this window again.

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你是说你想让焦点每秒钟在你的程序和另一个第二个程序之间切换？或者在您的应用程序中，您希望每2秒将另一个程序带到前面（以防它再次回到后面）？它是一个程序（不同的程序进程）还是您的子窗体？它的不同程序，我希望我的程序只将它放在焦点上…在Windows上，您应该使用

user32.dll

，因为

coredll.dll

是针对Windows Mobile的！