CL</code> package:</p>

    <pre>
? (in-package :ccl)
#&lt;Package "CCL"&gt;
    </pre>

    <p>Creating a Cocoa window follows the common Objective-C pattern
    of allocating an object and then initializing it with some
    starting data. To allocate a window, just call
    the <code>alloc</code> method of the <code>NSWindow</code>
    class:</p>

    <pre>
? (setf my-window (#/alloc (@class ns-window)))
#&lt;NS-WINDOW &lt;NSWindow: 0x13b68580&gt; (#x13B68580)&gt;
    </pre>

    <p>The above expression c