The code to do the trick is provided below:
<?php
$view = views_get_view('view_name');
$view->init();
$view->set_display('default'); // or display id like page_1, block_1
//$view->set_arguments(array('arg_data'));
//$view->set_arguments(array(arg(0),'arg_data2')); // 2nd Argument
$view->pre_execute();
$view->execute();
//print_r($view->result);
drupal_set_message("Field data value: ".$view->result[0]->node_data_field_as_it_appears_in_views_query_sql);
?>Update for Drupal 7:
<?php
$view = views_get_view('view_name');
$view->init();
$view->set_display('default'); // or display id like page_1, block_1
//$view->set_arguments(array('arg_data'));
//$view->set_arguments(array(arg(0),'arg_data2')); // 2nd Argument
//$view->pre_execute();
$view->execute();
//print_r($view->result[0]->_field_data);
drupal_set_message("Node Title : ".$view->result[0]->_field_data['nid']['entity']->title);
drupal_set_message("Field data value: ".$view->result[0]->_field_data['nid']['entity']->field_as_it_appears['und'][0]['value']);
?>--
Source:
http://drupal.org/node/342132
Further Reading:
http://karenziv.com/2011/10/drupal-calling-a-view-programmatically/