public function showPreview($maxwidth = 500, $height = '56%')
    {
        $this->display_video = $maxwidth;
        $this->preview_height = $height;
        return $this;
    }
public function showPreview($maxwidth = 500, $height = '56%')
    {
        $this->display_video = $maxwidth;
        $this->preview_height = $height;
        return $this;
    }
public function showPreview ( $ maxwidth = 500 , $ height = '56%' ) { $ this -> display_video = $ maxwidth ; $ this -> preview_height = $ height ; return $ this ; }
Display a video preview

@param  Varchar width
@param  Varchar height
@return VideoLinkField
Display a video preview