Get Absolute Position of element within the window in wpf

Question

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

User · Accepted Answer

I think what BrandonS wants is not the position of the mouse relative to the root element, but rather the position of some descendant element.

For that, there is the TransformToAncestor method:

Point relativePoint = myVisual.TransformToAncestor(rootVisual)
                              .Transform(new Point(0, 0));

Where myVisual is the element that was just double-clicked, and rootVisual is Application.Current.MainWindow or whatever you want the position relative to.

User · Answer

Hm  You have to specify window you clicked in Mouse GetPosition IInputElement relativeTo  Following code works well for me  protected override void OnMouseDown MouseButtonEventArgs e                base OnMouseDown e           Point p   e GetPosition this           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 Application Current MainWindow will help you

User · Answer

To get the absolute position of an UI element within the window you can use   Point position   desiredElement PointToScreen new Point 0d  0d      If you are within an User Control  and simply want relative position of the UI element within that control  simply use   Point position   desiredElement PointToScreen new Point 0d  0d    controlPosition   this PointToScreen new Point 0d  0d     position X -  controlPosition X  position Y -  controlPosition Y

User · Answer

Add this method to a static class    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           Set relativeToScreen paramater to true for placement from top left corner of whole screen or to false for placement from top left corner of application window

User · Answer

Hm  You have to specify window you clicked in Mouse GetPosition IInputElement relativeTo  Following code works well for me  protected override void OnMouseDown MouseButtonEventArgs e                base OnMouseDown e           Point p   e GetPosition this           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 Application Current MainWindow will help you

User · Answer

To get the absolute position of an UI element within the window you can use   Point position   desiredElement PointToScreen new Point 0d  0d      If you are within an User Control  and simply want relative position of the UI element within that control  simply use   Point position   desiredElement PointToScreen new Point 0d  0d    controlPosition   this PointToScreen new Point 0d  0d     position X -  controlPosition X  position Y -  controlPosition Y

User · Answer

Hm  You have to specify window you clicked in Mouse GetPosition IInputElement relativeTo  Following code works well for me  protected override void OnMouseDown MouseButtonEventArgs e                base OnMouseDown e           Point p   e GetPosition this           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 Application Current MainWindow will help you

User · Answer

Add this method to a static class    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           Set relativeToScreen paramater to true for placement from top left corner of whole screen or to false for placement from top left corner of application window

User · Answer

Since  NET 3 0  you can simply use  yourElement  TranslatePoint new Point 0  0    theContainerOfYourChoice     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   Check here for the doc

User · Answer

Since  NET 3 0  you can simply use  yourElement  TranslatePoint new Point 0  0    theContainerOfYourChoice     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   Check here for the doc

User · Answer

Hm  You have to specify window you clicked in Mouse GetPosition IInputElement relativeTo  Following code works well for me  protected override void OnMouseDown MouseButtonEventArgs e                base OnMouseDown e           Point p   e GetPosition this           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 Application Current MainWindow will help you

[wpf] Get Absolute Position of element within the window in wpf

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