This function returns a pseudohandle for the current thread.
A pseudohandle is a special constant that is interpreted as the current thread handle. The calling thread can use this handle to specify itself when a thread handle is required.
This handle has the maximum possible access to the thread object.
The function cannot be used by one thread to create a handle that can be used by other threads to refer to the first thread. The handle is always interpreted as referring to the thread that is using it.
The pseudohandle does not need to be closed when it is no longer needed.
Calling the CloseHandle function with this handle has no effect.