How to assign to the program other priority?

Borland C ++ Builder FAQ
	The content	The last update: 12/12/2008

The author: KAV
The initial link: - - -

HANDLE ProcessHandle, ThreadHandle; 
DWORD ProcessID = GetCurrentProcessId (); 
ProcessHandle = OpenProcess (PROCESS_ALL_ACCESS, false, ProcessID); 
SetPriorityClass (ProcessHandle, HIGH_PRIORITY_CLASS); 
ThreadHandle = GetCurrentThread (); 
SetThreadPriority (ThreadHandle,THREAD_PRIORITY_TIME_CRITICAL);