using System; using System.Runtime.InteropServices; namespace Microsoft.Win32.SafeHandles { public sealed class SafeRegistryHandle : SafeHandle { public override bool IsInvalid { get { if (!(handle == IntPtr.Zero)) return handle == new IntPtr(-1); return true; } } internal SafeRegistryHandle() : base(IntPtr.Zero, true) { } public SafeRegistryHandle(IntPtr preexistingHandle, bool ownsHandle) : base(IntPtr.Zero, ownsHandle) { SetHandle(preexistingHandle); } protected override bool ReleaseHandle() { return true; } } }