[STAThread] public static void Main() { //Get the running instance. Process instance = RunningInstance(); if (instance == null) { //There isn't another instance, show our form. Application.Run (new Form()); } else { //There is another instance of this process. HandleRunningInstance(instance); }
主要应用System.Diagnostics名字空间中的Process类来实现,思路,我们在运行程序前,查找进程中是否有同名的进程,同时运行位置也相同程,如是没有运行该程序,如果有,就将同名的同位置的程序窗口置前. 主要代码:public static Process RunningInstance() { Process current = Process.GetCurrentProcess(); Process[] processes = Process.GetProcessesByName (current.ProcessName); //查找相同名称的进程 foreach (Process process in processes) { //忽略当前进程 if (process.Id != current.Id) { //确认相同进程的程序运行位置是否一样. if (Assembly.GetExecutingAssembly().Location.Replace("/", "\\") == current.MainModule.FileName) { //Return the other process instance. return process; } } } //No other instance was found, return null. return null; }
{
System.Threading.Mutex mutexMyapplication = new System.Threading.Mutex(false, "Your Application");
if(!mutexMyapplication .WaitOne(100, false))
{
MessageBox.Show("本程序已经在运行");
return;
}
Application.Run(new Form1());
}
public static void Main()
{
//Get the running instance.
Process instance = RunningInstance();
if (instance == null)
{
//There isn't another instance, show our form.
Application.Run (new Form());
}
else
{
//There is another instance of this process.
HandleRunningInstance(instance);
}
主要代码:public static Process RunningInstance()
{
Process current = Process.GetCurrentProcess();
Process[] processes = Process.GetProcessesByName (current.ProcessName);
//查找相同名称的进程
foreach (Process process in processes)
{
//忽略当前进程
if (process.Id != current.Id)
{
//确认相同进程的程序运行位置是否一样.
if (Assembly.GetExecutingAssembly().Location.Replace("/", "\\") == current.MainModule.FileName)
{
//Return the other process instance.
return process;
}
}
}
//No other instance was found, return null.
return null;
}