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how to map big size file (more than 2GB file) with MapViewOfFile api
Sergey Alexandrovich Kryukov 1-Feb-13 12:42pm    
What did you try so far? Documentation is available, so what's the problem?

1 solution

If you try to map at something other than a multiple of the allocation granularity, the mapping will fail and GetLastError will return ERROR_MAPPED_ALIGNMENT

To obtain the memory allocation granularity of the system, use the GetSystemInfo function, which fills in the members of a SYSTEM_INFO structure.

For files that are larger than the address space, you can only map a small portion of the file data at one time. When the first view is complete, you can unmap it and map a new view.

To obtain the size of a view, use the VirtualQuery function.
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H.Brydon 2-Feb-13 2:27am    
+5 for your answer...
sid2881986 2-Feb-13 4:12am    

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