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POWrite string data to MemoryMappedFile
 

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    <p>I am following this tutorial <a href="http://www.c-sharpcorner.com/uploadfile/b942f9/using-memory-mapped-files/" rel="nofollow">here</a></p> <p>I am having a hard time figuring out how to get a string "THIS IS A TEST MESSAGE" to store in the memory mapped file and then pull it out on the other side. The tutorial says to use byte array. Forgive me I am new to this and trying on my own first.</p> <p>Thanks, Kevin</p> <pre><code>##Write to mapped file using System; using System.IO.MemoryMappedFiles; class Program1 { static void Main() { // create a memory-mapped file of length 1000 bytes and give it a 'map name' of 'test' MemoryMappedFile mmf = MemoryMappedFile.CreateNew("test", 1000); // write an integer value of 42 to this file at position 500 MemoryMappedViewAccessor accessor = mmf.CreateViewAccessor(); accessor.Write(500, 42); Console.WriteLine("Memory-mapped file created!"); Console.ReadLine(); // pause till enter key is pressed // dispose of the memory-mapped file object and its accessor accessor.Dispose(); mmf.Dispose(); } } ##read from mapped file using System; using System.IO.MemoryMappedFiles; class Program2 { static void Main() { // open the memory-mapped with a 'map name' of 'test' MemoryMappedFile mmf = MemoryMappedFile.OpenExisting("test"); // read the integer value at position 500 MemoryMappedViewAccessor accessor = mmf.CreateViewAccessor(); int value = accessor.ReadInt32(500); // print it to the console Console.WriteLine("The answer is {0}", value); // dispose of the memory-mapped file object and its accessor accessor.Dispose(); mmf.Dispose(); } } </code></pre>
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    1. COQ: Are you successfully able to write and read back your Int32 "42" at location 500? If so, just extend the same concept to byte arrays: http://www.dotnetperls.com/convert-string-byte-array
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    2. COI think I've got the write working with strings. Will test and repost code changes.
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    3. COWhat I am trying to do is have one application write to shared mem, close, and then read the message. This example seems to work when both are on at the same time.
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