Привязка растра по одной точке, загрузка изображения в формат RSW

  [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
        protected override void WndProc(ref Message m)
        {
            switch (m.Msg)
            {
                case 0x0581 :
                    progressBar1.Value = (int)m.WParam;
                    break;
            }
            base.WndProc(ref m);
        }

   RstAPI.AttachRswWithScalingAndRotation(MapView1.MapHandle, this.Handle, rswname, ref rstpoint1, ref rstpoint2,
                                                                  ref mappoint1, ref mappoint2, 1);