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+%D \module
+%D   [       file=prop-neg,
+%D        version=2004.05.29, % some code moved from private modules
+%D          title=\CONTEXT\ Property Macros,
+%D       subtitle=Negation,
+%D         author=Hans Hagen,
+%D           date=\currentdate,
+%D      copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+\writestatus{loading}{ConTeXt Property Macros / Negation}
+
+\unprotect
+
+% D Overprint cum suis.
+%
+% \defineproperty[\v!overprint][\s!overprint] [\c!method=\v!command]
+% \defineproperty[\v!knockout] [\s!overprint] [\c!method=\v!command]
+%
+% \definepropertyhandler \v!overprint {\dotriggeroverprint\v!overprint}
+% \definepropertyhandler \v!knockout  {\dotriggeroverprint\v!knockout }
+%
+% \unexpanded\def\startoverprintproperty{\dotriggeroverprint\v!overprint}
+% \unexpanded\def\stopoverprintproperty {\dotriggeroverprint\v!knockout }
+
+%D Negative cum suis.
+
+\defineproperty [\v!negative] [\s!negative] [\c!method=\v!command]
+\defineproperty [\v!positive] [\s!negative] [\c!method=\v!command]
+
+\definepropertyhandler \v!negative {\dotriggernegative\v!negative}
+\definepropertyhandler \v!positive {\dotriggernegative\v!positive}
+
+\unexpanded\def\startnegativeproperty{\dotriggernegative\v!negative}
+\unexpanded\def\stopnegativeproperty {\dotriggernegative\v!positive}
+
+\protect \endinput