blocks|key|1664658|text|嗯。你必须指定你在Mouse.GetPosition(IInputElement+relativeTo)中点击的窗口，下面的代码很适合我|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1664659|protected+override+void+OnMouseDown(MouseButtonEventArgs+e)
++++{
++++++++base.OnMouseDown(e);
++++++++Point+p+=+e.GetPosition(this);
++++}|code-block|syntax|javascript|1664660|我怀疑你需要引用窗口，而不是从它自己的类，而是从应用程序的其他点。在这种情况下，Application.Current.MainWindow将帮助您。|1664661|entityMap^0|9|17|0|0|14|U|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

Hm.
You have to specify window you clicked in <code>Mouse.GetPosition(IInputElement relativeTo)</code>
Following code works well for me

<pre><code>protected override void OnMouseDown(MouseButtonEventArgs e)
 {
 base.OnMouseDown(e);
 Point p = e.GetPosition(this);
 }
</code></pre>

I suspect that you need to refer to the window not from it own class but from other point of the application. In this case <code>Application.Current.MainWindow</code> will help you.

blocks|key|1664708|text|要获取UI元素在窗口中的绝对位置，可以使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1664709|Point+position+=+desiredElement.PointToScreen(new+Point(0d,+0d));|code-block|syntax|javascript|1664710|如果您在用户控件中，并且只是想要UI元素在该控件中的相对位置，则只需使用：|1664711|Point+position+=+desiredElement.PointToScreen(new+Point(0d,+0d)),
controlPosition+=+this.PointToScreen(new+Point(0d,+0d));

position.X+-=+controlPosition.X;
position.Y+-=+controlPosition.Y;|1664712|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

To get the absolute position of an UI element within the window you can use:

<pre><code>Point position = desiredElement.PointToScreen(new Point(0d, 0d));
</code></pre>

If you are within an User Control, and simply want relative position of the UI element within that control, simply use:

<pre><code>Point position = desiredElement.PointToScreen(new Point(0d, 0d)),
controlPosition = this.PointToScreen(new Point(0d, 0d));

position.X -= controlPosition.X;
position.Y -= controlPosition.Y;
</code></pre>

blocks|key|1664774|text|将此方法添加到静态类：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1664775|+public+static+Rect+GetAbsolutePlacement(this+FrameworkElement+element,+bool+relativeToScreen+=+false)
++++{
++++++++var+absolutePos+=+element.PointToScreen(new+System.Windows.Point(0,+0));
++++++++if+(relativeToScreen)
++++++++{
++++++++++++return+new+Rect(absolutePos.X,+absolutePos.Y,+element.ActualWidth,+element.ActualHeight);
++++++++}
++++++++var+posMW+=+Application.Current.MainWindow.PointToScreen(new+System.Windows.Point(0,+0));
++++++++absolutePos+=+new+System.Windows.Point(absolutePos.X+-+posMW.X,+absolutePos.Y+-+posMW.Y);
++++++++return+new+Rect(absolutePos.X,+absolutePos.Y,+element.ActualWidth,+element.ActualHeight);
++++}|code-block|syntax|javascript|1664776|将relativeToScreen参数设置为true，以便从整个屏幕的左上角放置，或者设置为false，以便从应用程序窗口的左上角放置。|offset|length|style|CODE|1664777|entityMap^0|0|0|1|G|M|4|1A|5|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]|$I|T|J|U|K|L]|$I|V|J|W|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|N|$]]

Add this method to a static class:

<pre><code> public static Rect GetAbsolutePlacement(this FrameworkElement element, bool relativeToScreen = false)
 {
 var absolutePos = element.PointToScreen(new System.Windows.Point(0, 0));
 if (relativeToScreen)
 {
 return new Rect(absolutePos.X, absolutePos.Y, element.ActualWidth, element.ActualHeight);
 }
 var posMW = Application.Current.MainWindow.PointToScreen(new System.Windows.Point(0, 0));
 absolutePos = new System.Windows.Point(absolutePos.X - posMW.X, absolutePos.Y - posMW.Y);
 return new Rect(absolutePos.X, absolutePos.Y, element.ActualWidth, element.ActualHeight);
 }
</code></pre>

Set <code>relativeToScreen</code> paramater to <code>true</code> for placement from top left corner of whole screen or to <code>false</code> for placement from top left corner of application window.

blocks|key|1664861|text|从.NET+3.0开始，您可以简单地使用*yourElement*.TranslatePoint(new+Point(0,+0),+*theContainerOfYourChoice*)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1664862|这将给你的按钮的点0，0，但指向容器。(你也可以给出另外一个点，0，0)|1664863|Check+here+for+the+doc.|1664864|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.microsoft.com/fr-fr/dotnet/api/system.windows.uielement.translatepoint^0|K|21|0|0|0|N|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|V|8|@]|D|@$9|W|A|X|1|Y]]|E|$]]|$1|J|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]]]

Since .NET 3.0, you can simply use <code>*yourElement*.TranslatePoint(new Point(0, 0), *theContainerOfYourChoice*)</code>.

This will give you the point 0, 0 of your button, but towards the container.
(You can also give an other point that 0, 0)

<a href="https://docs.microsoft.com/fr-fr/dotnet/api/system.windows.uielement.translatepoint" rel="nofollow noreferrer">Check here for the doc.</a>

blocks|key|1664870|text|childObj.MouseDown+%2B=+(object+sender,+MouseButtonEventArgs+e)+=>
{
++++Vector+parent+=+(Vector)e.GetPosition(parentObj);
++++Vector+child+=+(Vector)e.GetPosition(childObj);+//+sender
++++Point+childPosition+=+(Point)(parent+-+child);
};|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1664871|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>childObj.MouseDown += (object sender, MouseButtonEventArgs e) =&gt;
{
 Vector parent = (Vector)e.GetPosition(parentObj);
 Vector child = (Vector)e.GetPosition(childObj); // sender
 Point childPosition = (Point)(parent - child);
};
</code></pre>

I would like to get the absolute position of an element in relation to the window/root element when it is double clicked. The element's relative position within it's parent is all I can seem to get to, and what I'm trying to get to is the point relative to the window. I've seen solutions of how to get a the point of an element on the screen, but not in the window.

Get Absolute Position of element within the window in wpf

Windows

容器

当双击某个元素时，我想获得该元素相对于窗口/根元素的绝对位置。元素在其父元素中的相对位置似乎是我所能得到的全部，而我想要得到的是相对于窗口的点。我已经看到了如何在屏幕上获得元素的点的解决方案，但不是在窗口中。

问在wpf中获取元素在窗口中的绝对位置
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