The Thread Class

To control the starting, stopping, and monitoring of independent threads, GPL includes a Thread Class that includes the required methods and properties. In Table 19-41, the members of this Class are briefly described. Completion information on these class members are provided in the GPL Dictionary pages.

Table 19-41: Thread Class Definitions
Member	Type	Description
New Thread	Constructor Method	Creates a thread object and associates it with a procedure.
thread_object.Abort	Method	Stops execution of a thread such that it cannot be resumed.
thread_object.Argument	Property	Sets or gets a numeric value that can be used as a parameter for a thread.
Thread.CurrentThread	Shared Method	Returns a thread object for the currently executing thread.
thread_object.Join	Method	Waits for a thread to complete execution, with a timeout.
thread_object.Name	Get Property	Returns a String containing the name of the thread associated with this object.
thread_object.Project	Get Property	Returns a String containing the name of the project associated with this object.
thread_object.Resume	Method	Resumes execution of a thread that was suspended.
Thread.Schedule	Shared Method	Changes the execution priority and thread scheduling algorithm for the current thread.
thread_object.SendEvent	Method	Sends an event to a thread to notify it that a significant transition has occurred.
Thread.Sleep	Shared Method	Causes the current thread to stop execution for a specified amount of time.
thread_object.Start	Method	Initializes and starts execution of a procedure as an independent thread.
thread_object.StartProcedure	Get Property	Returns a String containing the name of the start procedure associated with this object.
thread_object.Suspend	Method	Suspends execution of a thread so that it can be resumed.
Thread.TestAndSet	Shared Method	Atomically reads a numeric variable and writes a new value. Used for restricting access to data shared between threads.
thread_object.ThreadState	Get Property	Returns an integer indicating the execution state of a thread.
Thread.WaitEvent	Shared Method	Causes the current thread to wait for an event.