Unity 将窗体设置在前面

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;


public abstract class WindowAPI
{
    
    
    public delegate bool WNDENUMPROC(IntPtr hwnd, uint lParam);
    [DllImport("user32.dll", SetLastError = true)]
    public static extern bool EnumWindows(WNDENUMPROC lpEnumFunc, uint lParam);

    [DllImport("user32.dll", SetLastError = true)]
    public static extern IntPtr GetParent(IntPtr hWnd);
    [DllImport("user32.dll")]
    public static extern uint GetWindowThreadProcessId(IntPtr hWnd, ref uint lpdwProcessId);

    [DllImport("kernel32.dll")]
    public static extern void SetLastError(uint dwErrCode);
    [DllImport("User32.dll")]
    private static extern bool SetForegroundWindow(IntPtr hWnd);

    public static IntPtr GetProcessWnd()
    {
    
    
        IntPtr ptrWnd = IntPtr.Zero;
        uint pid = (uint)Process.GetCurrentProcess().Id;  // 当前进程 ID

        bool bResult = EnumWindows(new WNDENUMPROC(delegate (IntPtr hwnd, uint lParam)
        {
    
    
            uint id = 0;

            if (GetParent(hwnd) == IntPtr.Zero)
            {
    
    
                GetWindowThreadProcessId(hwnd, ref id);
                if (id == lParam)    // 找到进程对应的主窗口句柄
                {
    
    
                    ptrWnd = 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;

        }), pid);

        return (!bResult && Marshal.GetLastWin32Error() == 0) ? ptrWnd : IntPtr.Zero;
    }
    public static IntPtr GetProcessWnd(string name)
    {
    
    
        IntPtr ptrWnd = IntPtr.Zero;
        uint pid = (uint)Process.GetProcessesByName(name)[0].Id;  // 当前进程 ID

        bool bResult = EnumWindows(new WNDENUMPROC(delegate (IntPtr hwnd, uint lParam)
        {
    
    
            uint id = 0;

            if (GetParent(hwnd) == IntPtr.Zero)
            {
    
    
                GetWindowThreadProcessId(hwnd, ref id);
                if (id == lParam)    // 找到进程对应的主窗口句柄
                {
    
    
                    ptrWnd = 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;

        }), pid);

        return (!bResult && Marshal.GetLastWin32Error() == 0) ? ptrWnd : IntPtr.Zero;
    }
    /// <summary>
    /// 通过进程名将窗口设置在前面
    /// </summary>
    public static void SetWindowForward(string proccessName)
    {
    
    
        IntPtr hwnd = GetProcessWnd(proccessName);
        SetForegroundWindow(hwnd);
    }
}

从这里CV 来的，添加了一点修改。