Threads

[Tim via Digitalmars-d-learn]

Hello! I am trying to make a simple multi-threading application. 
But I get an error when I run the main thread of the program in a 
thread. The question is: "How to pass arguments from the main 
thread to the newly created thread of itself". Here is a piece of 
code:

module main;
import app;
import core.thread;
int main(string[] args)
{

    static int result;
    static string[] args_copy;

    static void app_thread()
    {
        App app = new App();
        result = app.run(args_copy); //<-- Exception; static int 
App.run(string[] args)
        
//object.Exception@/usr/include/dmd/phobos/std/getopt.d(423):
        // Invalid arguments string passed: program name missing
    }

    args_copy = args; //Why program name is missing while copy 
arguments?

    // Running app interface in a thread;
    Thread thread = new Thread(&app_thread).start();
    thread.join();

    return result;
}