Overwrite

Complete Overwrite of the Folder with the free shard. ServUO 57.3 has been added.

Ultima/ClientHandles.cs

@@ -0,0 +1,48 @@
+#region References
+using System;
+
+using Microsoft.Win32.SafeHandles;
+#endregion
+
+namespace Ultima
+{
+	public class ClientWindowHandle : CriticalHandleZeroOrMinusOneIsInvalid
+	{
+		public static ClientWindowHandle Invalid = new ClientWindowHandle(new IntPtr(-1));
+
+		public ClientWindowHandle()
+		{ }
+
+		public ClientWindowHandle(IntPtr value)
+		{
+			handle = value;
+		}
+
+		protected override bool ReleaseHandle()
+		{
+			if (!IsClosed)
+			{
+				return ReleaseHandle();
+			}
+			return true;
+		}
+	}
+
+	public class ClientProcessHandle : CriticalHandleZeroOrMinusOneIsInvalid
+	{
+		public static ClientProcessHandle Invalid = new ClientProcessHandle(new IntPtr(-1));
+
+		public ClientProcessHandle()
+		{ }
+
+		public ClientProcessHandle(IntPtr value)
+		{
+			handle = value;
+		}
+
+		protected override bool ReleaseHandle()
+		{
+			return NativeMethods.CloseHandle(this) == 0;
+		}
+	}
+}