C#WinForm制作异形窗体/控件[3]

              curColor = Picture.GetPixel(x,y);

              if(curColor == TransparentColor || x == nWidth - 1)//如果遇到透明色或行尾

                   {

                       if(isTransRgn == false)//退出有效区

                       {

                            curRect.Width = x - curRect.X;

                            rgn.Union(curRect);

                       }

                   }

                   else//非透明色

                   {

                       if(isTransRgn == true)//进入有效区

                       {