Handling Memory mapped File in C# directly from the memory

Question

Is it possible to open memory mapped file in C# directly just like opening files directly in windows, say for example, I'm creating memory mapped file. through following code.

using System;
using System.IO.MemoryMappedFiles;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main()
        {
            MemoryMappedFile mmf = MemoryMappedFile.CreateNew("test.txt", 5);
            MemoryMappedViewAccessor accessor = mmf.CreateViewAccessor();
            var arun = new[] {(byte)'a', (byte)'r', (byte)'u', (byte)'n'};
            for (int i = 0; i < arun.Length; i++)
                accessor.Write(i, arun[i]);
            Console.WriteLine("Memory-mapped file created!");
            Console.ReadLine(); // pause till enter key is pressed
            accessor.Dispose();
            mmf.Dispose();
        }
    }
}

I need to open the file directly. Is it possible like opening file through

Process.start("test.txt");

from another process instead of reading values by the code .

 MemoryMappedFile mmf1 = MemoryMappedFile.OpenExisting("test.txt");
 MemoryMappedViewAccessor accessor1 = mmf1.CreateViewAccessor();
 var  value = accessor1.ReadByte(4);    

If it possible to open memory mapped file directly? Please let me know.

Answer 1

Starting with the .NET Framework version 4, you can use managed code to access memory-mapped files in the same way that native Windows functions access memory-mapped files, as described in Managing Memory-Mapped Files in Win32 in the MSDN Library.

• Memory-Mapped Files (.NET 4.0)

• Working with memory mapped files in .NET 4