For example I have 2 languages: EN
and RU: how to display in index.php post only in RU
language ? maybe are some parameters in wp_query
?
Try to use qtranslate core function
function qtrans_use($lang, $text, $show_available=false)
Something like this:
$mypost = get_post(get_the_ID());
$content = qtrans_use('ru', $mypost->post_content,false);
echo "$content";