Method Thread():atStart() Foundation
Reserved method for use by subclasses of the Thread class.
:atStart( [<xParamList,...>] ) --> NIL
The return value of :atStart() is ignored.
The :atStart() method is PROTECTED and can only be invoked from subclasses of the Thread class. Its purpose is to implement program code in a user-defined method which is executed once at the beginning of a thread, rather than using the :atStartinstance variable. The method is called at the beginning of a thread. Note that if both instance variable and method specify code to execute when a thread starts, the :atStart() method is executed first.
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