vlr-sysvar-reactor
(vlr-sysvar-reactor customData
callbackList)
This function creates and attaches a
SystemVariables operation reactor to the current drawing, for the
command events specified by callbackList.
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Arguments
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customData
(any valid Lisp data) custom data to be
associated with the reactor object, can be NIL
callbackList (list) list of DottedPair entries, each
DottedPair has the form
(event
. callback)
event : one of
these symbolic constants
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:vlr-sysVarWillChange
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a system variable is about to
be changed
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:vlr-sysVarChanged
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a system variable has been
changed
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callback : the
client Lisp side callback function, using 2 arguments :
(defun MyCB ( reactor args
/ ...) ...)
reactor : the
SystemVariables reactor object -
#<VLR-Sysvar-Reactor>
args : (list)
contains 1...2 arguments, depending on the particular event
:
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:vlr-sysVarWillChange
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1 argument
(string)
name of the system variable
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:vlr-sysVarChanged
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2 arguments
1st argument : string, the name of the system
variable
2nd argument : integer 1=success,
0=failed
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Return
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the reactor object
#<VLR-Sysvar-Reactor> or NIL
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Example
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Remarks
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