create Memory-mapped file

[weixj2003ld]

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?

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

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

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