HTML

echo \'<div id="screen-meta-links">\';
echo \' <div id="contextual-help-link-wrap" class="hide-if-no-js screen-meta-toggle">\';
echo \'  <a href="#" id="your-own-button" class="show-settings">Text for your button</a>\';
echo \' </div>\';
echo \'</div>\';
echo \'<br style="clera:both" />\';

echo \'<div id="your-button-content" class="your-button-hide">\';
// your content goes here
echo \'</div>\';

jQuery(document).ready( function($){

$( \'.your-button-hide\' ).each(
  function(e){
    $( this ).hide();
  }
);

$( \'#your-own-button\' ).click(
  function( e ){
    e.preventDefault();

    $( \'#your-button-content\' ).toggle();

    var hasclass = $( \'#your-own-button\' ).hasClass( \'screen-meta-active\' );
    if( hasclass ){
      $( \'#your-own-button\' ).removeClass( \'screen-meta-active\' );
    } else {
      $( \'#your-own-button\' ).addClass( \'screen-meta-active\' );
    }
  }
);

});

完整的代码可能如下所示：

add_action( \'admin_menu\', \'register_backendpage\', 10, 0 );

function register_backendpage() {
  $pagehook = add_management_page(
    \'Your backend page\',
    \'Your backend page\',
    \'manage_options\',
    \'a-menu-slug-of-your-choice\',
    \'backendpage_callback\',
    false,
    \'bottom\'
  );

  add_action( \'load-\' . $pagehook, \'enqueue_button_script\', 10, 0 );
}

function backendpage_callback() {

    // output your button here, see code above

    echo \'<div class="wrap">\';
    /*
     * the rest of your page content
     */
}

function enqueue_button_script() {
    // the js above
    wp_enqueue_script( \'your-button-script\', ... );
}

不知道为什么这个问题这么快就被驳回了。这实际上是一个有效的问题，如果能够在上面添加一个按钮，甚至编辑每个屏幕选项的内容，那将非常有用。

我知道这是个老问题，但是。。。

如果你想在上面添加一个按钮，可以链接到其他地方。您可以添加一些jQuery来添加按钮。

jQuery("#screen-meta-links").append(\'<div id="contextual-help-link-wrap" class="hide-if-no-js screen-meta-toggle" style=""><a href="link.html" id="contextual-help-link" class="show-settings">My New Button</a></div>\');

您要查找的文件是：

wordpress\\wp admin\\includes\\screen。php

我已经为添加您自己的此类按钮编写了一个简单而精确的干净解决方案：

class TmMS_Controller extends TmMS {

    //...

    public function init() {
        //...            
        add_action(\'admin_footer\', array(&$this, \'admin_footer\'));
        // ...
    }



    public function admin_footer() {
    if (empty($_GET) OR (isset($_GET[\'post_type\']) AND $_GET[\'post_type\'] == \'post\')) {
        if ($_SERVER[\'SCRIPT_URI\'] == admin_url(\'edit.php\')) {
            ?>
            <script type="text/javascript">
                jQuery(function() {
                    jQuery(\'#screen-meta-links\').append(\'<div class="hide-if-no-js screen-meta-toggle" id="mail-subscriber-options-link-wrap" style=""><a aria-expanded="false" aria-controls="screen-options-wrap" class="show-settings" id="mail-subscriber-settings-link" href="#mail-subscriber-options-wrap">Newsplus</a></div>\');
                    var mail_subscriber_options_wrap = jQuery(\'#mail_subscriber_options\').html();
                    jQuery(\'#mail_subscriber_options\').remove();
                    jQuery(\'#screen-meta\').append(mail_subscriber_options_wrap);
                });

            </script>
            <?php
            $this->draw_prepared_posts_content();
        }
    }
}

    public function draw_prepared_posts_content() {
        $data = array();

        echo $this->draw_html(\'admin/prepared_posts_content\', $data);
    }

    // ...

}

$tm_ms_controller = new TmMS_Controller();
add_action(\'init\', array(&$tm_ms_controller, \'init\'), 1, 999);

#mail-subscriber-options-link-wrap {
float: right;
height: 23px;
padding: 0;
margin: 0 0 0 6px;
font-family: sans-serif;
}

#mail-subscriber-options-link-wrap {
    -webkit-border-bottom-left-radius: 3px;
    -webkit-border-bottom-right-radius: 3px;
    border-bottom-left-radius: 3px;
    border-bottom-right-radius: 3px;
}

/* screen options and help tabs */
#mail-subscriber-options-link-wrap {
    border-right: 1px solid #d1e5ee;
    border-left: 1px solid #d1e5ee;
    border-bottom: 1px solid #d1e5ee;
    background: #eff8ff;
    background-image: -webkit-gradient(linear, left bottom, left top, from(#def1ff), to(#eff8ff));
    background-image: -webkit-linear-gradient(bottom, #def1ff, #eff8ff);
    background-image:    -moz-linear-gradient(bottom, #def1ff, #eff8ff);
    background-image:      -o-linear-gradient(bottom, #def1ff, #eff8ff);
    background-image: linear-gradient(to top, #def1ff, #eff8ff);
}

#mail-subscriber-options-posts{
    padding: 0;
    margin: 0;
}

这可能吗？

没有一些JavaScript就不行。

有可能吗？

这两个选项卡将转换为WP 3.3中管理栏中的菜单。看看测试版。