classname::dofunction... what is it? how i use it?
<p>Every once in a while a programmer will see something like this in her code:</p>

<pre><code>classname::dofunction();
</code></pre>

<p>example:</p>

<pre><code>class person
{
private:
    string name ; 

public:
    string getperson() { return name ; }
};

void main()
{
    ............
    .........
    ........

    person::getperson(); 
}
</code></pre>

<p>I want to use something like the previous example but I get this error:</p>

<pre><code> error C2352:
 'GUI_Window::Get_FrameWindowPtr' :
 illegal call of non-static member
 function
</code></pre>

<ol>
<li> What is the name of this technique?
<li> Can you explain about how to use it?
</ol>
