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(gpgme.info)Engine Information

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Engine Information
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 - Function: const char * gpgme_get_engine_info (void)
     The function `gpgme_get_engine_info' returns an XML string
     containing information about the available protocols and the
     engine which implement them.  The following information is returned
     for each engine:

    `<protocol>'
          The name of the protocol.

    `<version>'
          The version of the engine.

    `<path>'
          The path to the engine binary.

     A string is always returned.  If an error occurs, the string will
     contain an `<error>' tag with a description of the failure.

   Here is the example output of what `gpgme_get_engine_info' might
return on your system:

     <EngineInfo>
      <engine>
       <protocol>OpenPGP</protocol>
       <version>1.0.6</version>
       <path>/usr/bin/gpg</path>
      </engine>
      <engine>
       <protocol>CMS</protocol>
       <version>0.0.0</version>
       <path>/usr/bin/gpgsm</path>
      </engine>
     </EngineInfo>