C# 动态绘制视频(wpf)示例源码

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Windows.Ink;
using System.Windows.Media;

using System.Windows.Input.StylusPlugIns;
using System.Windows;
using System.Windows.Input;

namespace TianQiYuBao.Examples
{
    class SecondInkCanvas : DynamicRenderer
    {



        public Point beginpoint;
        public Point lastpoint;

        public static MediaPlayer p1;
        public  static  MediaPlayer p = new MediaPlayer();
        public static MediaPlayer CreateMedia()
        {
            if (Pagemv.vedioname == "video1")
            {
                p.Open(new Uri("video1.wmv", UriKind.Relative));
            }
            else
            {
                p.Open(new Uri("video2.wmv", UriKind.Relative));
            }
            p.Play();
            return p;
        }
        protected override void OnStylusDown(RawStylusInput rawStylusInput)
        {
            base.OnStylusDown(rawStylusInput);
            p1 = CreateMedia();
            beginpoint = (Point)rawStylusInput.GetStylusPoints().First();

        }


        protected override void OnStylusMove(RawStylusInput rawStylusInput)
        {
            base.OnStylusMove(rawStylusInput);
            this.Reset(Stylus.CurrentStylusDevice, rawStylusInput.GetStylusPoints());
        }

        protected override void OnDraw(DrawingContext drawingContext, StylusPointCollection stylusPoints, Geometry geometry, Brush fillBrush)
        {
            base.OnDraw(drawingContext, stylusPoints, geometry, fillBrush);
            lastpoint = (Point)stylusPoints.Last();
            Rect rect = new Rect(beginpoint, lastpoint);
            // drawingContext.DrawRectangle(fillBrush,null,rect);



            drawingContext.DrawVideo(p1, rect);

        }
    }
}