C# (CSharp) CurrentLayer.AddVisual示例

示例#1

        public void AddBitmap(BitmapSource image)
        {
            DrawingVisual visual = new DrawingVisual();

            using (var dc = visual.RenderOpen())
            {
                dc.DrawImage(image, new Rect(0, 0, image.PixelWidth, image.PixelHeight));
            }
            CurrentLayer.AddVisual(visual);
        }

示例#2

        /// <summary>
        /// 在鼠标左键按下时创建图形
        /// </summary>
        /// <param name="e"></param>
        protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
        {
            base.OnMouseLeftButtonDown(e);

            // 只有规则图形才创建DrawingVisual对象
            if ((int)DrawingMode >= (int)Shapes.DrawingMode.Line)
            {
                // 利用反射创建特定实例
                shape = new DrawingVisual();
                // 添加到图层中
                CurrentLayer.AddVisual(shape);

                startPoint = e.GetPosition(inkCanvas);
            }
        }