ThreadPool.GetAvailableThreads Method (Int32, Int32)
Retrieves the difference between the maximum number of thread pool threads returned by the GetMaxThreads method, and the number currently active.
Assembly: mscorlib (in mscorlib.dll)
Whenreturns, the variable specified by workerThreads contains the number of additional worker threads that can be started, and the variable specified by completionPortThreads contains the number of additional asynchronous I/O threads that can be started.
If there are no available threads, additional thread pool requests remain queued until thread pool threads become available.
Available since 1.1