164 lines
4.9 KiB
C#
164 lines
4.9 KiB
C#
using System;
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using System.Diagnostics;
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using System.Reflection;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Windows.Forms;
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namespace Ultron.Ngrok
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{
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static class Program
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{
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#region WindowsAPI
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/// <summary>
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/// 显示窗口
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/// </summary>
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/// <param name="hWnd"></param>
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/// <param name="cmdShow"></param>
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/// <returns></returns>
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[DllImport("User32.dll")]
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private static extern bool ShowWindowAsync(System.IntPtr hWnd, int cmdShow);
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/// <summary>
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/// 根据窗体句柄获得窗体标题
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/// </summary>
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/// <param name="hWnd"></param>
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/// <param name="lpText"></param>
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/// <param name="nCount"></param>
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/// <returns></returns>
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[DllImport("user32.dll", CharSet = CharSet.Auto)]
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private static extern int GetWindowText(IntPtr hWnd, StringBuilder lpText, int nCount);
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/// <summary>
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/// 根据窗体句柄获得其进程ID
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/// </summary>
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/// <param name="hwnd"></param>
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/// <param name="ID"></param>
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/// <returns></returns>
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[DllImport("User32.dll", CharSet = CharSet.Auto)]
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private static extern int GetWindowThreadProcessId(IntPtr hwnd, out int ID);
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/// <summary>
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/// 枚举窗体
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/// </summary>
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/// <param name="x"></param>
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/// <param name="y"></param>
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/// <returns></returns>
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[DllImport("user32")]
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private static extern int EnumWindows(CallBack x, int y);
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#endregion
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#region 属性字段委托
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/// <summary>
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/// 窗体标题
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/// </summary>
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public static string FormName = "uNgrok";
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/// <summary>
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/// 显示窗口参数
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/// </summary>
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private const int SW_RESTORE = 9;
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/// <summary>
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/// 已存在的进程实例
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/// </summary>
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private static Process instance = null;
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private delegate bool CallBack(IntPtr hwnd, int lParam);
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#endregion
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/// <summary>
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/// 应用程序的主入口点。
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/// </summary>
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[STAThread]
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static void Main()
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{
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Application.EnableVisualStyles();
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Application.SetCompatibleTextRenderingDefault(false);
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//获取运行的进程
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instance = RunningInstance();
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if (instance == null)
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{
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//没有进程在运行
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Application.Run(new FormMain());
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}
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else
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{
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//是否托盘化, 托盘状态窗口句柄为0
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if (instance.MainWindowHandle.ToInt32() != 0)
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{
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//调用api函数，正常显示窗口
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ShowWindowAsync(instance.MainWindowHandle, SW_RESTORE);
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}
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else
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{
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CallBack callback = new CallBack(Report);
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EnumWindows(callback, 0);
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}
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Environment.Exit(Environment.ExitCode);
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}
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}
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#region 方法
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/// <summary>
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/// 获取运行中的进程
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/// </summary>
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/// <returns></returns>
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private static Process RunningInstance()
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{
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Process current = Process.GetCurrentProcess();
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Process[] processes = Process.GetProcessesByName(current.ProcessName);
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//遍历与当前进程名称相同的进程列表
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foreach (Process process in processes)
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{
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//如果实例已经存在则忽略当前进程
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if (process.Id != current.Id)
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{
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//保证要打开的进程同已经存在的进程来自同一文件路径
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if (Assembly.GetExecutingAssembly().Location.Replace("/", "\\") == current.MainModule.FileName)
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{
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//返回已经存在的进程
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return process;
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}
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}
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}
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return null;
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}
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/// <summary>
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/// 枚举窗口回调
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/// </summary>
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/// <param name="hwnd"></param>
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/// <param name="lParam"></param>
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/// <returns></returns>
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private static bool Report(IntPtr hwnd, int lParam)
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{
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//获得窗体标题
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StringBuilder sb = new StringBuilder(100);
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GetWindowText(hwnd, sb, sb.Capacity);
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//获取进程ID
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GetWindowThreadProcessId(hwnd, out int calcID);
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//标题栏、进程id符合
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if ((sb.ToString() == FormName) && (instance != null) && (calcID == instance.Id))
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{
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//调用api函数，正常显示窗口
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ShowWindowAsync(hwnd, SW_RESTORE);
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return false;
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}
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return true;
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}
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#endregion
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}
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}
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