Difference between revisions of "SetPriorityClass"
Cringer000 (talk | contribs) (SetPriorityClass - a function that sets the priority class for a specified process.) |
Cringer000 (talk | contribs) (SetPriorityClass - a function that sets the priority class for a specified process.) |
||
| Line 1: | Line 1: | ||
SetPriorityClass - a function that sets the priority class for a specified process. This function is specific to Windows. | SetPriorityClass - a function that sets the priority class for a specified process. This function is specific to Windows. | ||
| − | + | ||
The SetPriorityClass may have one of the following priority classes: | The SetPriorityClass may have one of the following priority classes: | ||
| − | HIGH_PRIORITY_CLASS = High performs tasks immediately. | + | HIGH_PRIORITY_CLASS <= High performs tasks immediately.<br> |
| − | IDLE_PRIORITY_CLASS = Idle performs tasks when the system is idle. | + | IDLE_PRIORITY_CLASS <= Idle performs tasks when the system is idle.<br> |
| − | NORMAL_PRIORITY_CLASS = Normal performs tasks at regular speed. | + | NORMAL_PRIORITY_CLASS <= Normal performs tasks at regular speed.<br> |
| − | REALTIME_PRIORITY_CLASS = Real Time performs tasks immediately and above | + | REALTIME_PRIORITY_CLASS <= Real Time performs tasks immediately and above all other tasks, including operating system tasks.<br><br> |
| − | |||
Use caution when using REALTIME_PRIORITY_CLASS. It can potentially take so | Use caution when using REALTIME_PRIORITY_CLASS. It can potentially take so | ||
much of the CPU resources that there may not be anything left for other items | much of the CPU resources that there may not be anything left for other items | ||
to run, including operating system requests. | to run, including operating system requests. | ||
| − | + | ||
EXAMPLE: | EXAMPLE: | ||
Revision as of 09:45, 25 July 2010
SetPriorityClass - a function that sets the priority class for a specified process. This function is specific to Windows.
The SetPriorityClass may have one of the following priority classes:
HIGH_PRIORITY_CLASS <= High performs tasks immediately.
IDLE_PRIORITY_CLASS <= Idle performs tasks when the system is idle.
NORMAL_PRIORITY_CLASS <= Normal performs tasks at regular speed.
REALTIME_PRIORITY_CLASS <= Real Time performs tasks immediately and above all other tasks, including operating system tasks.
Use caution when using REALTIME_PRIORITY_CLASS. It can potentially take so much of the CPU resources that there may not be anything left for other items to run, including operating system requests.
EXAMPLE:
<delphi> uses Windows; // Unit containing the SetPriorityClass function.
procedure TForm1.FormCreate(Sender: TObject); begin
SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS);
// Sets the current running application to High Priority.
end;
</delphi>
