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)
When returns, 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.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.