source/Core/Config.php
public function getPicturePath($file, $admin = false, $lang = null, $shop = null, $theme = null)
    {
        return $this->getDir($file, $this->_sPictureDir, $admin, $lang, $shop, $theme);
    }
public function getPicturePath($file, $admin = false, $lang = null, $shop = null, $theme = null)
    {
        return $this->getDir($file, $this->_sPictureDir, $admin, $lang, $shop, $theme);
    }
public function getPicturePath ( $ file , $ admin = false , $ lang = null , $ shop = null , $ theme = null ) { return $ this -> getDir ( $ file , $ this -> _sPictureDir , $ admin , $ lang , $ shop , $ theme ) ; }
Finds and returns product pictures files or folders path

@param string $file  File name
@param bool   $admin Whether to force admin
@param int    $lang  Language
@param int    $shop  Shop id
@param string $theme theme name

@return string
Finds and returns product pictures files or folders path