wpf容易误解的Image

参考sdk

1.Image是控件,Source属性类型是ImageSource

<Image Source="xx.jpg" />

2.ImageBrush是笔刷,用于填充

1.基本使用,必须指定ImageSource源

<Rectangle
      <Rectangle.Fill>
        <ImageBrush ImageSource="xx.jpg"  />
      </Rectangle.Fill>
    </Rectangle>

ImageBrush继承自TileBrush,ImageBrush功能比较强大
3.ImageDrawing继承自Drawing,用于绘图

        <Button Content="Click Me">
          <Button.Background>
            <DrawingBrush>
              <DrawingBrush.Drawing>
                    <ImageDrawing ImageSource="xx"
                        Rect="50,50,50,50" />
              </DrawingBrush.Drawing>
            </DrawingBrush>
          </Button.Background>
        </Button>

4.DrawingImage 是ImageSouce

        <Image>
            <Image.Source>
                <DrawingImage>
                    <DrawingImage.Drawing>
                        <GeometryDrawing>
                            <GeometryDrawing.Geometry>
                                <GeometryGroup>
                                    <EllipseGeometry Center="50,50" RadiusX="45" RadiusY="20" />
                                    <EllipseGeometry Center="50,50" RadiusX="20" RadiusY="45" />
                                </GeometryGroup>
                            </GeometryDrawing.Geometry>
                            <GeometryDrawing.Brush>
                                <LinearGradientBrush>
                                    <GradientStop Offset="0.0" Color="Blue" />
                                    <GradientStop Offset="1.0" Color="#CCCCFF" />
                                </LinearGradientBrush>
                            </GeometryDrawing.Brush>
                            <GeometryDrawing.Pen>
                                <Pen Thickness="10" Brush="Black" />
                            </GeometryDrawing.Pen>
                        </GeometryDrawing>
                    </DrawingImage.Drawing>
                </DrawingImage>
            </Image.Source>
        </Image>