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Index > Windows > File Mapping

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Vasilev Vjacheslav



Joined: 11 Aug 2004
Posts: 392
Vasilev Vjacheslav
Please, i need help!

I have mapped file to memory by standart way (CreateFile, CreateFileMapping,
MapView OfFile). But i need to increase size of this file in memory (e.g. i add new section to executable), can i doing this, and how to unmapview with new size (or it's impossible)? or better way to use buffers?

ps. i search answer in MSDN, but nothing found

_________________
[not enough memory]
Post 23 Mar 2005, 05:41
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f0dder



Joined: 19 Feb 2004
Posts: 3170
Location: Denmark
f0dder
If you need to grow a file mapping, you must first close the handles, then do a new CreateFileMapping with the increased size. When modifying PE executables, I tend to HeapAlloc a buffer of peheader.SizeOfImage bytes, then read in the executable data like the PE loader would - this is much easier for manipulating the image file.
Post 23 Mar 2005, 10:41
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