www.pudn.com > HookAPI > ps.h

typedef unsigned long NTSTATUS; 
typedef unsigned short USHORT; 
typedef unsigned long ULONG; 
typedef unsigned long DWORD; 
typedef long LONG; 
typedef __int64 LONGLONG; 
 
typedef struct { 
	USHORT Length; 
	USHORT MaxLen; 
	USHORT *Buffer; 
} UNICODE_STRING; 
 
typedef struct { 
	ULONG NextEntryDelta; 
	ULONG ThreadCount; 
	ULONG Reserved1[6]; 
	LARGE_INTEGER CreateTime; 
	LARGE_INTEGER UserTime; 
	LARGE_INTEGER KernelTime; 
	UNICODE_STRING ProcessName; 
	ULONG BasePriority; 
	ULONG ProcessId; 
}PROCESS_INFO; 
 
typedef DWORD (WINAPI *NTQUERYSYSTEMINFORMATION)( 
			IN ULONG SysInfoClass, 
			IN OUT PVOID SystemInformation, 
			IN ULONG SystemInformationLength, 
			OUT PULONG RetLen);