Implementing a single instance of an application with the C # threading mechanism

Program
As long as the main entrance in your program is as follows, your program can only have one instance of the program at a time when it is running, such as Winamp is this, when it is running, and then hit the program, it will not run an instance.

The code is simple.

[STAThread]

static void Main (string[] args)

{

BOOL Isexist;

System.Threading.Mutex mutex=new System.Threading.Mutex (True, "myApp", out isexist);

The MyApp here is the identification of the program, proposed to replace the physical path of your program, so if in an operating system this flag does not conflict with other programs

if (isexist) environment.exit (1);//instance already exists, exiting program

}