using System;
using System.Drawing;
using System.Runtime.InteropServices;

internal class GCBuffer : SafeBuffer {
	protected GCHandle gch;
	public GCBuffer(object value)
		: base(true) {
		gch = GCHandle.Alloc(value, GCHandleType.Pinned);
		handle = gch.AddrOfPinnedObject();
	}

	protected override bool ReleaseHandle() {
		gch.Free();
		return !gch.IsAllocated;
	}
	
	public static void Main(string[] args) {
		var bytes = new byte[] {
			0x01, 0x00, 0x00, 0x00,
			0x02, 0x00, 0x00, 0x00,
			0x03, 0x00, 0x00, 0x00,
			0x04, 0x00, 0x00, 0x00,
		};
		using(var buffer = new GCBuffer(bytes)) {
			buffer.Initialize<byte>((uint)bytes.Length);
			Console.WriteLine(buffer.Read<Rectangle>(0ul));
			buffer.Write(0ul, new Point(-1, -2));
			buffer.ReadArray(0ul, bytes, 0, bytes.Length);
			Console.WriteLine(BitConverter.ToString(bytes));
		}
	}
}