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HandyControl/doc/source/handycontrol/extend_controls/magnifier/index.md
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2020-08-11 21:21:52 +08:00

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---
title: Magnifier 放大镜
---
借助 `Magnifier` 可对任意控件局部放大.
```cs
[TemplatePart(Name = ElementVisualBrush, Type = typeof(VisualBrush))]
public class Magnifier : AdornerElement
```
# 属性
|属性|描述|默认值|备注|
|-|-|-|-|
|HorizontalOffset|相对鼠标的水平偏移|0||
|VerticalOffset|相对鼠标的垂直偏移|0||
|Scale|缩放因子|5.0|||
# 案例
```xml
<Image Margin="16" hc:Magnifier.Instance="{x:Static hc:Magnifier.Default}" Source="/HandyControlDemo;component/Resources/Img/b1.jpg" Stretch="None"/>
```
```xml
<Image Margin="16" Source="/HandyControlDemo;component/Resources/Img/b1.jpg" Stretch="None">
<hc:Magnifier.Instance>
<hc:Magnifier Scale="6" HorizontalOffset="-16" VerticalOffset="-16"/>
</hc:Magnifier.Instance>
</Image>
```
![Magnifier](https://raw.githubusercontent.com/HandyOrg/HandyOrgResource/master/HandyControl/Resources/Magnifier.png)