view plaincopy to clipboardPRint? ·········10········20········30········40········50········60········70········80········90········100·······110·······120·······130·······140·······150 [STAThread] public static void Main() { bool ret; System.Threading.Mutex mutex = new System.Threading.Mutex(true, application.ProductName, out ret); if (ret) { System.Windows.Forms.Application.EnableVisualStyles(); //這兩行實現 XP 可視風格 System.Windows.Forms.Application.DoEvents(); System.Windows.Forms.Application.Run(new Main()); // Main 為你程序的主窗體，如果是控制臺程序不用這句 mutex.ReleaseMutex(); } else { MessageBox.Show(null, "有一個和本程序相同的應用程序已經在運行，請不要同時運行多個本程序。/n/n這個程序即將退出。", Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Warning); // 提示信息，可以刪除。 Application.Exit();//退出程序 } } [STAThread] public static void Main() { bool ret; System.Threading.Mutex mutex = new System.Threading.Mutex(true, Application.ProductName, out ret); if (ret) { System.Windows.Forms.Application.EnableVisualStyles(); //這兩行實現 XP 可視風格 System.Windows.Forms.Application.DoEvents(); System.Windows.Forms.Application.Run(new Main()); // Main 為你程序的主窗體，如果是控制臺程序不用這句 mutex.ReleaseMutex(); } else { MessageBox.Show(null, "有一個和本程序相同的應用程序已經在運行，請不要同時運行多個本程序。/n/n這個程序即將退出。", Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Warning); // 提示信息，可以刪除。 Application.Exit();//退出程序 } }
方法二：禁止多個進程運行,并當重復運行時激活以前的進程
view plaincopy to clipboardprint? ·········10········20········30········40········50········60········70········80········90········100·······110·······120·······130·······140·······150 [STAThread] public static void Main() { //Get the running instance. Process instance = RunningInstance(); if (instance == null) { System.Windows.Forms.Application.EnableVisualStyles(); //這兩行實現 XP 可視風格 System.Windows.Forms.Application.DoEvents(); //There isn't another instance, show our form. Application.Run(new Main()); } else { //There is another instance of this process. HandleRunningInstance(instance); } } public static Process RunningInstance() { Process current = Process.GetCurrentProcess(); Process[] processes = Process.GetProcessesByName(current.ProcessName); //Loop through the running processes in with the same name foreach (Process process in processes) { //Ignore the current process if (process.Id != current.Id) { //Make sure that the process is running from the exe file. if (Assembly.GetExecutingAssembly().Location.Replace("/", "//") == current.MainModule.FileName) { //Return the other process instance. return process; } } } //No other instance was found, return null. return null; } public static void HandleRunningInstance(Process instance) { //Make sure the window is not minimized or maximized ShowWindowAsync(instance.MainWindowHandle, WS_SHOWNORMAL); //Set the real intance to foreground window SetForegroundWindow(instance.MainWindowHandle); } [DllImport("User32.dll")] private static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow); [DllImport("User32.dll")] private static extern bool SetForegroundWindow(IntPtr hWnd); private const int WS_SHOWNORMAL = 1; [STAThread] public static void Main() { //Get the running instance. Process instance = RunningInstance(); if (instance == null) { System.Windows.Forms.Application.EnableVisualStyles(); //這兩行實現 XP 可視風格 System.Windows.Forms.Application.DoEvents(); //There isn't another instance, show our form. Application.Run(new Main()); } else { //There is another instance of this process. HandleRunningInstance(instance); } } public static Process RunningInstance() { Process current = Process.GetCurrentProcess(); Process[] processes = Process.GetProcessesByName(current.ProcessName); //Loop through the running processes in with the same name foreach (Process process in processes) { //Ignore the current process if (process.Id != current.Id) { //Make sure that the process is running from the exe file. if (Assembly.GetExecutingAssembly().Location.Replace("/", "//") == current.MainModule.FileName) { //Return the other process instance. return process; } } } //No other instance was found, return null. return null; } public static void HandleRunningInstance(Process instance) { //Make sure the window is not minimized or maximized ShowWindowAsync(instance.MainWindowHandle, WS_SHOWNORMAL); //Set the real intance to foreground window SetForegroundWindow(instance.MainWindowHandle); } [DllImport("User32.dll")] private static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow); [DllImport("User32.dll")] private static extern bool SetForegroundWindow(IntPtr hWnd); private const int WS_SHOWNORMAL = 1;
