create Memory-mapped file

With a large file on the disk,we can use the flowing code to create a Memory-mapped file,but how to realize it with Qt class?

Code:

---

HANDLE CreateFile(LPCTSTR lpFileName, 
DWORD dwDesiredAccess, 
DWORD dwShareMode, 
LPSECUR99vY_ATTRIBUTES lpSecurityAttributes, 
DWORD dwCreationDisposition, 
DWORD dwFlagsAndAttributes, 
HANDLE hTemplateFile);

---

Quote:

---

Code:

---

HANDLE CreateFile(LPCTSTR lpFileName, 
DWORD dwDesiredAccess, 
DWORD dwShareMode, 
LPSECUR99vY_ATTRIBUTES lpSecurityAttributes, 
DWORD dwCreationDisposition, 
DWORD dwFlagsAndAttributes, 
HANDLE hTemplateFile);

---

---

the code is API function,how could I realize them by Qt class,or Qt can call these functions?

See QFile::map.