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  #ifndef ROSBAG_GPGME_UTILS_H
  #define ROSBAG_GPGME_UTILS_H
  
  #include "rosbag/encryptor.h"
  
  #ifndef _WIN32
    #include <gpgme.h>
  
  namespace rosbag {
  
  //! Initialize GPGME library
  /*!
   * This method initializes GPGME library, and set locale.
   */
  void initGpgme();
  
  //! Get GPG key
  /*!
   * \param ctx GPGME context
   * \param user User name of the GPG key
   * \param key GPG key found
   *
   * This method outputs a GPG key in the system keyring corresponding to the given user name.
   * This method throws BagException if the key is not found or error occurred.
   */
  void getGpgKey(gpgme_ctx_t& ctx, std::string const& user, gpgme_key_t& key);
  
  }
  #endif
  
  #endif
  