Get attachment id in a Wordpress post
<p>I am designing a wallpaper website. In every post there is only one unique image which I'm trying to get the attachment ID associated with that image.</p>

<p>My code that gets the post's content: </p>

<pre><code>&lt;?php the_content( __( 'Continue Reading' , 'nuntius' ) . ' &amp;raquo;'); ?&gt;
</code></pre>

<p>I can get the thumbnail image's link, but not the full image's link.</p>

<p>Is there anyway to do this?</p>