MARKUS

using Microsoft.Win32.SafeHandles;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Runtime.InteropServices;

using System.Security;

using System.Text;

using System.Threading.Tasks;

namespace Markus.Image

{

    class SafeHBitmapHandle : SafeHandleZeroOrMinusOneIsInvalid

    {

        [SecurityCritical]

        public SafeHBitmapHandle(IntPtr preexistingHandle, bool ownsHandle)

            : base(ownsHandle)

        {

            SetHandle(preexistingHandle);

        }

        protected override bool ReleaseHandle()

        {

            return NativeMethods.DeleteObject(handle);

        }

    }

    /// <summary>

    /// FxCop requires all Marshalled functions to be in a class called NativeMethods.

    /// </summary>

    internal static class NativeMethods

    {

        [DllImport("gdi32.dll")]

        [return: MarshalAs(UnmanagedType.Bool)]

        internal static extern bool DeleteObject(IntPtr hObject);

    }

}