GetThreadPriority info  Overview  Group

The GetThreadPriority function returns the priority value for the specified thread. This value, together with the priority class of the thread’s process, determines the thread’s base-priority level.

int GetThreadPriority(

Parameters

hThread

Identifies the thread.

Windows NT: The handle must have THREAD_QUERY_INFORMATION access. For more information, see Thread Objects.

Return Values

If the function succeeds, the return value is the thread’s priority level.

If the function fails, the return value is THREAD_PRIORITY_ERROR_RETURN. To get extended error information, call GetLastError.

The thread’s priority level is one of the following values:

Remarks

Every thread has a base-priority level determined by the thread’s priority value and the priority class of its process. The operating system uses the base-priority level of all executable threads to determine which thread gets the next slice of CPU time. Threads are scheduled in a round-robin fashion at each priority level, and only when there are no executable threads at a higher level will scheduling of threads at a lower level take place.

For a table that shows the base-priority levels for each combination of priority class and thread priority value, refer to the SetPriorityClass function.

See Also

GetPriorityClass, SetPriorityClass, SetThreadPriority 

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