Memory Mapped File Example

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Memory-mapped I/O uses the filesystem to establish a virtual memory mapping from user space directly to the applicable filesystem pages. With a memory-mapped file, we can pretend that the entire file is in memory and that we can access it by simply treating it as a very large array.

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C++ Memory Mapped File Example Linux

I have an image in D Drive like 'D:Image1.tiff'. I want to read this file and write it in an another location, for example in the path 'D:Project'. How to do this using Memory Mapped File?

C++ memory mapped filethevanthevan
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2 Answers

The CreateFromFile methods create a memory-mapped file from an existing file on disk.The following example creates a memory-mapped view of a part of an extremely large file and manipulates a portion of it.

The following example opens the same memory-mapped file for another process.

You can also read more at :http://www.codeproject.com/Articles/138290/Programming-Memory-Mapped-Files-with-the-NET-Frame

Anant Dabhi

Windows Memory Mapped File Example

Anant Dabhi
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I can now achieve reading and writing a file using Memory Mapped File using the below coding:

thevanthevan
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