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

int readerCount ( ) const Get current number of open CompressedVectorReader objects reading from ImageFile. CompressedVectorReader objects that still exist, but are in the closed state aren't counted. CompressedVectorReader objects are created by the CompressedVectorNode::reader function. Precondition: This ImageFile must be open (i.e. isOpen()). Postcondition: No visible state is modified. Returns: The current number of open CompressedVectorReader objects reading from ImageFile. Exceptions: E57_ERROR_IMAGEFILE_NOT_OPEN E57_ERROR_INTERNAL All objects in undocumented state See also: SourceDestBuffer::pathName() example, CompressedVectorNode::reader, CompressedVectorReader