vlr-sysvar-reactor

vlr-set-notification

V Functions

vlr-toolbar-reactor

 

AutoLISP Reference Guide > AutoLISP Functions > V Functions > 

vlr-sysvar-reactor

Constructs an editor reactor object that notifies of a change to a system variable

(vlr-sysvar-reactor data callbacks)

Arguments

data

Any AutoLISP data to be associated with the reactor object; otherwise nil if no data.

callbacks

A list of pairs of the following form:

(event-name . callback_function)

where event-name is one of the symbols listed in the “SysVar reactor events” table below, and callback_function is a symbol representing a function to be called when the event fires. Each callback function accepts two arguments:

reactor_object The VLR object that called the callback function.

list A list of extra data elements associated with the particular event. The contents of this list for particular events are shown in the “SysVar reactor callback data” table.

Return Values

The reactor_object argument.