The IIOReadProgressListener interface allows for
notification of the percentage of an image that has been read
The IIOReadUpdateListener interface allows for
notification of the portions of an image that have been read. This is
useful, for example, for implementing dynamic display of an image as
it is loaded.
The IIOReadWarningListener interface allows for
notification of non-fatal errors during reading.
The IIOWriteWarningListener and
IIOWriteProgressListener interfaces perform analogous
functions for writers.