WPF中根据DPI获取准确坐标点啊

public class DPIUtils

    {

        private static double _dpiX = 1.0;

        private static double _dpiY = 1.0;

        public static double DPIX

        {

            get

            {

                return DPIUtils._dpiX;

            }

        }

        public static double DPIY

        {

            get

            {

                return DPIUtils._dpiY;

            }

        }

        public static void Init(System.Windows.Media.Visual visual)

        {

            Matrix transformToDevice = System.Windows.PresentationSource.FromVisual(visual).CompositionTarget.TransformToDevice;

            DPIUtils._dpiX = transformToDevice.M11;

            DPIUtils._dpiY = transformToDevice.M22;

        }

        public static Point DivideByDPI(Point p)

        {

            return new Point(p.X / DPIUtils.DPIX, p.Y / DPIUtils.DPIY);

        }

        public static Rect DivideByDPI(Rect r)

        {

            return new Rect(r.Left / DPIUtils.DPIX, r.Top / DPIUtils.DPIY, r.Width, r.Height);

        }

    }

WPF中根据DPI获取准确坐标点啊,布布扣,bubuko.com