cancel checkInvariant close dump elementNameParse extensionsAdd extensionsCount extensionsLookupPrefix extensionsLookupUri extensionsPrefix extensionsUri fileName ImageFile isElementNameExtended isOpen isWritable operator!= operator== readerCount root writerCount

bool extensionsLookupPrefix ( const ustring &  prefix, ustring &  uri  ) const Get URI associated with an E57 extension prefix in the ImageFile. Parameters: [in] prefix The shorthand name of the extension to look up. [out] uri The URI that was associated with the given prefix. If prefix = "", then uri is set to the default namespace URI, and the function returns true. if prefix is declared in the ImageFile, then uri is set the corresponding URI, and the function returns true. It is an error if prefix contains an illegal character combination for E57 namespace prefixes. It is not an error if prefix is well-formed, but not defined in the ImageFile (the function just returns false). Precondition: This ImageFile must be open (i.e. isOpen()). Postcondition: No visible state is modified. Returns: true if prefix is declared in the ImageFile. Exceptions: E57_ERROR_BAD_API_ARGUMENT E57_ERROR_IMAGEFILE_NOT_OPEN E57_ERROR_INTERNAL All objects in undocumented state See also: Extensions.cpp example, ImageFile::extensionsLookupUri