code.grnet.gr Git - pithos-ms-client/blob - trunk/Pithos.ShellExtensions/MarshalHelpers.cs

   1 using System;
   2 using System.Diagnostics.Contracts;
   3 using System.Runtime.InteropServices;
   4 using System.Text;
   5
   6 namespace Pithos.ShellExtensions
   7 {
   8     public static class MarshalHelpers
   9     {
  10
  11         public static void CopyToBuffer(string input, IntPtr buffer, int bufferSize)
  12         {
  13             Contract.Requires(buffer != IntPtr.Zero);
  14             Contract.Requires(bufferSize >=0 );
  15
  16             var bytes = Encoding.Unicode.GetBytes(input);
  17
  18             if (bytes.Length + 2 >= bufferSize)
  19                 return;
  20
  21             for (var i = 0; i < bytes.Length; i++)
  22             {
  23                 Marshal.WriteByte(buffer, i, bytes[i]);
  24             }
  25             //write the null terminator "\0\0"
  26             Marshal.WriteByte(buffer, bytes.Length, 0);
  27             Marshal.WriteByte(buffer, bytes.Length + 1, 0);
  28         }
  29     }
  30 }