示例#1
0
        /// <include file='doc\Region.uex' path='docs/doc[@for="Region.Complement3"]/*' />
        /// <devdoc>
        ///    <para>
        ///       Updates this <see cref='System.Drawing.Region'/> to the portion of the
        ///       specified <see cref='System.Drawing.Region'/> that does not intersect with this <see cref='System.Drawing.Region'/>.
        ///    </para>
        /// </devdoc>
        public void Complement(Region region)
        {
            if (region == null)
            {
                throw new ArgumentNullException("region");
            }

            int status = SafeNativeMethods.GdipCombineRegionRegion(new HandleRef(this, nativeRegion), new HandleRef(region, region.nativeRegion), CombineMode.Complement);

            if (status != SafeNativeMethods.Ok)
            {
                throw SafeNativeMethods.StatusException(status);
            }
        }