進程、線程優先級

 

Process priority class		Thread priority level	Base priority
IDLE_PRIORITY_CLASS		THREAD_PRIORITY_IDLE	1
		THREAD_PRIORITY_LOWEST	2
		THREAD_PRIORITY_BELOW_NORMAL	3
		THREAD_PRIORITY_NORMAL	4
		THREAD_PRIORITY_ABOVE_NORMAL	5
		THREAD_PRIORITY_HIGHEST	6
		THREAD_PRIORITY_TIME_CRITICAL	15
BELOW_NORMAL_PRIORITY_CLASS		THREAD_PRIORITY_IDLE	1
		THREAD_PRIORITY_LOWEST	4
		THREAD_PRIORITY_BELOW_NORMAL	5
		THREAD_PRIORITY_NORMAL	6
		THREAD_PRIORITY_ABOVE_NORMAL	7
		THREAD_PRIORITY_HIGHEST	8
		THREAD_PRIORITY_TIME_CRITICAL	15
NORMAL_PRIORITY_CLASS		THREAD_PRIORITY_IDLE	1
		THREAD_PRIORITY_LOWEST	6
		THREAD_PRIORITY_BELOW_NORMAL	7
		THREAD_PRIORITY_NORMAL	8
		THREAD_PRIORITY_ABOVE_NORMAL	9
		THREAD_PRIORITY_HIGHEST	10
		THREAD_PRIORITY_TIME_CRITICAL	15
ABOVE_NORMAL_PRIORITY_CLASS		THREAD_PRIORITY_IDLE	1
		THREAD_PRIORITY_LOWEST	8
		THREAD_PRIORITY_BELOW_NORMAL	9
		THREAD_PRIORITY_NORMAL	10
		THREAD_PRIORITY_ABOVE_NORMAL	11
		THREAD_PRIORITY_HIGHEST	12
		THREAD_PRIORITY_TIME_CRITICAL	15
HIGH_PRIORITY_CLASS		THREAD_PRIORITY_IDLE	1
		THREAD_PRIORITY_LOWEST	11
		THREAD_PRIORITY_BELOW_NORMAL	12
		THREAD_PRIORITY_NORMAL	13
		THREAD_PRIORITY_ABOVE_NORMAL	14
		THREAD_PRIORITY_HIGHEST	15
		THREAD_PRIORITY_TIME_CRITICAL	15
REALTIME_PRIORITY_CLASS		THREAD_PRIORITY_IDLE	16
		THREAD_PRIORITY_LOWEST	22
		THREAD_PRIORITY_BELOW_NORMAL	23
		THREAD_PRIORITY_NORMAL	24
		THREAD_PRIORITY_ABOVE_NORMAL	25
		THREAD_PRIORITY_HIGHEST	26
		THREAD_PRIORITY_TIME_CRITICAL	31

 

 

//得到當前進程ID
DWORD   dwProcessID   =   GetCurrentProcessId();

//得到當前進程句柄
HANDLE   hProcess   =   GetCurrentProcess();

//提升進程優先級
SetPriorityClass(hProcess,HIGH_PRIORITY_CLASS);

 

 

關於優先級的操作
在程序中，可以獲取和更改進程和線程的優先級。對於進程的優先級類有如下
函數：
                DWORD   GetPriorityClass(HANDLE   hProcess);                 //   hProcess爲進程句柄
                BOOL   SetPriorityClass(HANEL   hProcess,   DWORD   dwPriority);
對線程的優先級有這兩個函數：
                int   GetThreadPriority(HANDLE   hThread);                     //hThread爲線程句柄
                BOOL   SetThreadPriority(HANDLE   hThread,   int   nPriority);