Close (X) button

Questions & Answers
1

How can I add close(X) button to the window like this screen?
alt text

Now I have the following window:

alt text

2

You will need to manually define a toggle button in the corner of your window, which sets a variable that will set whether to display the window in question. Something like this:

bool showWindow = true;

if(showWindow)
{
    GUI.Window(whatever options)
}

Then inside your Window function, have a button like this-

showWindow = !GUI.Button(wherever you put it, "X");

This will make the window disappear when the button gets pressed.

Of course, you will need to set showWindow back to true if you want to display the window again!