1. 运行C#代码（唤醒微信，快捷键 Ctrl+Alt+W，如有不同，自己更改）

2. 模拟按键B（输入 ^l，锁定微信，快捷键Ctrl+L，如有不同，自己更改）

3. 运行或打开（windows锁屏，填入 rundll32.exe user32.dll,LockWorkStation）

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;

public static class WeChatFinalSafe
{
    [DllImport("user32.dll")] private static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
    [DllImport("user32.dll")] private static extern bool IsIconic(IntPtr hWnd);
    [DllImport("user32.dll")] private static extern bool IsWindowVisible(IntPtr hWnd);
    [DllImport("user32.dll")] private static extern bool SetForegroundWindow(IntPtr hWnd);
    [DllImport("user32.dll")] private static extern bool EnumWindows(EnumWindowsProc lpEnumFunc, IntPtr lParam);
    [DllImport("user32.dll")] private static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
    [DllImport("user32.dll")] private static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
    [DllImport("user32.dll")] private static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, UIntPtr dwExtraInfo);

    private delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam);
    private static IntPtr targetHwnd = IntPtr.Zero;

    public static void Exec(dynamic context)
    {
        targetHwnd = IntPtr.Zero;
        Process[] processes = Process.GetProcessesByName("Weixin");
        if (processes.Length == 0) return;

        foreach (var p in processes)
        {
            EnumWindows(new EnumWindowsProc(EnumTheWindows), (IntPtr)p.Id);
            if (targetHwnd != IntPtr.Zero) break;
        }

        if (targetHwnd == IntPtr.Zero) return;

        // 1. 如果最小化，直接还原
        if (IsIconic(targetHwnd))
        {
            ShowWindow(targetHwnd, 9); // SW_RESTORE
        }
        // 2. 如果隐藏到托盘（不可见），使用微信自己的全局快捷键 Ctrl+Alt+W 唤醒
        else if (!IsWindowVisible(targetHwnd))
        {
            keybd_event(0x11, 0, 0, UIntPtr.Zero); // Ctrl 按下
            keybd_event(0x12, 0, 0, UIntPtr.Zero); // Alt 按下
            keybd_event(0x57, 0, 0, UIntPtr.Zero); // W 按下
            Thread.Sleep(50);
            keybd_event(0x57, 0, 2, UIntPtr.Zero); // W 抬起
            keybd_event(0x12, 0, 2, UIntPtr.Zero); // Alt 抬起
            keybd_event(0x11, 0, 2, UIntPtr.Zero); // Ctrl 抬起
            
            // 给微信 500 毫秒的时间，让它通过自己的逻辑慢慢弹出来
            Thread.Sleep(500); 
        }

        // 3. 如果微信现在在桌面上，强行按一下 Alt 键，绕过 Windows 的焦点锁定机制
        keybd_event(0x12, 0, 0, UIntPtr.Zero);
        keybd_event(0x12, 0, 2, UIntPtr.Zero);

        SetForegroundWindow(targetHwnd);
    }

    private static bool EnumTheWindows(IntPtr hWnd, IntPtr lParam)
    {
        uint processId;
        GetWindowThreadProcessId(hWnd, out processId);
        if (processId == (uint)lParam)
        {
            StringBuilder sb = new StringBuilder(256);
            GetWindowText(hWnd, sb, 256);
            if (sb.ToString() == "微信")
            {
                targetHwnd = hWnd;
                return false;
            }
        }
        return true;
    }
}