C#+nlua implementation to execute the LUA code on the main thread

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1.c# interaction with Lua Please refer to my previous article Lua combined C # to invoke C + + or C functions
2. In C #, how to put a piece of code fragments in the main thread execution. For WinForm Programs:

public void Executemethodinmainthread ()
        {
            if (this. InvokeRequired)
            {this
                . Invoke (New action<action> (Executemethodinmainthread));
                return;
            }
            Fill in the code to be executed on the main thread
        

For WPF:

public void Executemethodinmainthread ()
        {this
            . Dispather.invoke (() =>
            {
            ///fill in the code to be executed on the main thread
            ));

        

3. In Lua, the specified code fragment is executed in the main thread:

Anonymous functions in A.lua:

Local fun=function () return
    5;
End local
result=fun ();--b value is 5

One of the functions of a delegate in b.c# is to use the method as an argument:

public void DoSomething (Action a)
{
    A ();
}
public void Delay ()
{
    thread.sleep (3000);
}
DoSomething (Delay);

In this way, the function in Lua is also functional, whether it can be passed as a delegate.
The answer is yes.
In C #, declare the following function, and then call in Lua:

Public Form1 ()
{
    InitializeComponent ();
    Lua = new Nlua.lua ();
    Lua[' this '] = this;
    Lua. Loadclrpackage ();
 }
public void Executemethodinmainthread (Action a)
{
     if (this. InvokeRequired)
     {this
         . Invoke (New action<action> (Executemethodinmainthread), a);
         return;
     }
     A ();
}

Then fill in the Test.lua as follows:

Import ("System.Threading");
function UpdateTime () while
    (true) does local
        t=os.date ("*t");
        Str=t.hour ... ":". T.min ... ":". t.sec;
        This:executemethodinmainthread (
            function ()
                this.label1.text=str;               
            End         
        );
        Thread.Sleep ();
    End
End
updatetime ();

Where Label1 is a label on the main form, set to public or not accessible in Lua.
The last call to the Lua file:

private void Button1_Click (object sender, EventArgs e)
        {
            new Thread (() =>
            {
                lua. Dofile ("Test.lua");

            Start ();

        }

The above implements the purpose of using threads to update the UI in Lua.
This example downloads