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The CANCEL message

The final type of message is the ``CANCEL'' message which is similar to an ``OBEY'' message but data reduction tasks do not support any ``CANCEL'' actions.

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STARTCL --- Starlink Extensions to Tcl & Tk
Starlink User Note 186
D. L. Terrett
3 March 1999
E-mail:ussc@star.rl.ac.uk

Copyright © 2009 Science and Technology Facilities Council