86 lines
2.7 KiB
C#
86 lines
2.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Windows.Forms;
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using System.Runtime.InteropServices;
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using System.Diagnostics;
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using System.Reflection;
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using System.Threading;
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namespace AGVSystem
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{
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static class Program
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{
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[DllImport("User32.dll")]
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private static extern bool SetForegroundWindow(IntPtr hWnd);
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[DllImport("User32.dll")]
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private static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow);
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private const int WS_SHOWNORMAL = 3;
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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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try
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{
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Application.EnableVisualStyles();
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Application.SetCompatibleTextRenderingDefault(false);
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Process instance = RunningInstance();
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mainfrm.init2();
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if (instance == null)
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{
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Application.Run(new mainfrm());
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}
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else
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{
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HandleRunningInstance(instance);
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}
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}
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catch(Exception ex) { }
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//bool runOne;
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//Mutex run = new Mutex(true, "AGVSystem", out runOne);
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//if (runOne)
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//{
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// run.ReleaseMutex();
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// Application.EnableVisualStyles();
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// Application.SetCompatibleTextRenderingDefault(false);
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// Application.Run(new Form1());
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//}
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//else
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//{
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// MessageBox.Show("程序已运行!");
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//}
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}
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/// <summary>
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/// 获取正在运行的实例，没有运行的实例返回null;
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/// </summary>
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public 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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foreach (Process process in processes)
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{
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if (process.Id != current.Id)
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{
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if (Assembly.GetExecutingAssembly().Location.Replace("/", "\\") == current.MainModule.FileName)
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{
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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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/// 显示已运行的程序。
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/// </summary>
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public static void HandleRunningInstance(Process instance)
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{
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ShowWindowAsync(instance.MainWindowHandle, WS_SHOWNORMAL); //显示，可以注释掉
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SetForegroundWindow(instance.MainWindowHandle); //放到前端
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}
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}
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}
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