C#中把进程移动到副屏显示

在C#中，可以使用System.Windows.Forms.Screen类来获取计算机上所有屏幕的信息，包括主屏幕和副屏幕的位置、大小等信息。要将进程移动到副屏幕上，可以使用Process类来获取要移动的进程句柄，然后使用Win32 API函数SetWindowPos将其移动到副屏幕上。

下面是一个示例代码，可以将指定进程的窗口移动到副屏幕上：

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Windows.Forms;

public class MoveProcessWindowToSecondaryScreen
{
    [DllImport("user32.dll")]
    private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);

    private const uint SWP_NOSIZE = 0x0001;
    private const uint SWP_NOMOVE = 0x0002;
    private const uint SWP_NOZORDER = 0x0004;
    private const uint SWP_SHOWWINDOW = 0x0040;

    public static void MoveToSecondaryScreen(Process process)
    {
        Screen secondaryScreen = Screen.AllScreens.FirstOrDefault(s => !s.Primary);

        if (secondaryScreen != null && process != null && !process.HasExited)
        {
            IntPtr handle = process.MainWindowHandle;

            int width = secondaryScreen.WorkingArea.Width;
            int height = secondaryScreen.WorkingArea.Height;
            int x = secondaryScreen.WorkingArea.X;
            int y = secondaryScreen.WorkingArea.Y;

            SetWindowPos(handle, IntPtr.Zero, x, y, width, height, SWP_NOZORDER | SWP_SHOWWINDOW);
        }
    }
}

使用示例：

Process process = Process.GetProcessesByName("myprocess").FirstOrDefault();
MoveProcessWindowToSecondaryScreen.MoveToSecondaryScreen(process);

其中，"myprocess" 是要移动的进程的名称。