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+%D \module
+%D [ file=prop-mis,
+%D version=2004.05.29, % some code moved from private modules
+%D title=\CONTEXT\ Property Macros,
+%D subtitle=Miscelaneous,
+%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.
+
+\unprotect
+
+%D Overprint cum suis.
+
+\definepropertyhandler \v!overprint {\dotriggeroverprint\v!overprint}
+\definepropertyhandler \v!knockout {\dotriggeroverprint\v!knockout }
+
+\def\startoverprintproperty{\dotriggeroverprint\v!overprint}
+\def\stopoverprintproperty {\dotriggeroverprint\v!knockout }
+
+%D Negative cum suis.\def\dotriggeroverprint#1{\csname(os:#1)\endcsname}
+
+\definepropertyhandler \v!negative {\dotriggernegative\v!negative}
+\definepropertyhandler \v!positive {\dotriggernegative\v!positive}
+
+\def\startnegativeproperty{\dotriggernegative\v!negative}
+\def\stopnegativeproperty {\dotriggernegative\v!positive}
+
+%D Effects.
+
+\def\mktriggereffect#1%
+ {\dotriggereffect{#1}{\propertyparameter{#1}\c!stretch}{\propertyparameter{#1}\c!rulethickness}}
+
+\definepropertyhandler \v!normal {\mktriggereffect\v!normal}
+\definepropertyhandler \v!inner {\mktriggereffect\v!inner }
+\definepropertyhandler \v!outer {\mktriggereffect\v!outer }
+\definepropertyhandler \v!both {\mktriggereffect\v!both }
+\definepropertyhandler \v!hidden {\mktriggereffect\v!hidden}
+
+\def\starteffectproperty{\mktriggereffect\currentproperty}
+\def\stopeffectproperty {\mktriggereffect\v!normal }
+
+\protect \endinput