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(
HANDLE hThread |
// handle to thread |
); |
Windows NT: The handle must have THREAD_QUERY_INFORMATION access. For more information, see Thread Objects.
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:
Priority |
Meaning |
THREAD_PRIORITY_ABOVE_NORMAL | |
Indicates 1 point above normal priority for the priority class. | |
THREAD_PRIORITY_BELOW_NORMAL | |
Indicates 1 point below normal priority for the priority class. | |
THREAD_PRIORITY_HIGHEST | |
Indicates 2 points above normal priority for the priority class. | |
THREAD_PRIORITY_IDLE | |
Indicates a base-priority level of 1 for IDLE_PRIORITY_CLASS, NORMAL_PRIORITY_CLASS, or HIGH_PRIORITY_CLASS processes, and a base-priority level of 16 for REALTIME_PRIORITY_CLASS processes. | |
THREAD_PRIORITY_LOWEST | |
Indicates 2 points below normal priority for the priority class. | |
THREAD_PRIORITY_NORMAL | |
Indicates normal priority for the priority class. | |
THREAD_PRIORITY_TIME_CRITICAL | |
Indicates a base-priority level of 15 for IDLE_PRIORITY_CLASS, NORMAL_PRIORITY_CLASS, or HIGH_PRIORITY_CLASS processes, and a base-priority level of 31 for REALTIME_PRIORITY_CLASS processes. |
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.
GetPriorityClass, SetPriorityClass, SetThreadPriority
file: /Techref/os/win/api/win32/func/src/f41_10.htm, 5KB, , updated: 2000/4/7 12:19, local time: 2024/8/17 07:07,
18.216.91.156:LOG IN
|
©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions? <A HREF="http://techref.massmind.org/techref/os/win/api/win32/func/src/f41_10.htm"> GetThreadPriority</A> |
Did you find what you needed? |
Welcome to massmind.org! |
Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232! |
.