Convert a byte array to a class containing a byte array in C#
- by Mathijs
I've got a C# function that converts a byte array to a class, given it's type:
IntPtr buffer = Marshal.AllocHGlobal(rawsize);
Marshal.Copy(data, 0, buffer, rawsize);
object result = Marshal.PtrToStructure(buffer, type);
Marshal.FreeHGlobal(buffer);
I use sequential structs:
[StructLayout(LayoutKind.Sequential)]
public new class PacketFormat : Packet.PacketFormat { }
This worked fine, until I tried to convert to a struct/class containing a byte array.
[StructLayout(LayoutKind.Sequential)]
public new class PacketFormat : Packet.PacketFormat
{
public byte header;
public byte[] data = new byte[256];
}
Marshal.SizeOf(type) returns 16, which is too low (should be 257) and causes Marshal.PtrToStructure to fail with the following error:
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
I'm guessing that using a fixed array would be a solution, but can it also be done without having to resort to unsafe code?
