How do I get the current mouse screen coordinates in WPF

Question

How to get current mouse coordination on the screen  I know only Mouse GetPosition   which get mousePosition of element  but I want to get the coordination without using element

User · Answer

This works without having to use forms or import any DLLs      using System Windows     using System Windows Input            lt summary gt          Gets the current mouse position on screen          lt  summary gt      private Point GetMousePosition                    Position of the mouse relative to the window         var position   Mouse GetPosition Window               Add the window position         return new Point position X   Window Left  position Y   Window Top

User · Answer

Mouse GetPosition mWindow  gives you the mouse position relative to the parameter of your choice  mWindow PointToScreen   convert the position to a point relative to the screen   So mWindow PointToScreen Mouse GetPosition mWindow   gives you the mouse position relative to the screen  assuming that mWindow is a window actually  any class derived from System Windows Media Visual will have this function   if you are using this inside a WPF window class  this should work

User · Answer

Do you want coordinates relative to the screen or the application   If it s within the application just use    Mouse GetPosition Application Current MainWindow     If not  I believe you can add a reference to System Windows Forms and use   System Windows Forms Control MousePosition

User · Answer

Or in pure WPF use PointToScreen  Sample helper method     Gets the absolute mouse position  relative to screen Point GetMousePos     gt   window PointToScreen Mouse GetPosition  window

User · Answer

You may use combination of TimerDispatcher  WPF Timer analog  and Windows  Hooks  to catch cursor position from operational system        DllImport  user32 dll         return  MarshalAs UnmanagedType Bool       public static extern bool GetCursorPos out POINT pPoint     Point is a light struct  It contains only X  Y fields       public MainWindow                 InitializeComponent             DispatcherTimer dt   new System Windows Threading DispatcherTimer            dt Tick    new EventHandler timer tick           dt Interval   new TimeSpan 0 0 0 0  50           dt Start               private void timer tick object sender  EventArgs e                POINT pnt          GetCursorPos out pnt           current x box Text    pnt X  ToString            current y box Text    pnt Y  ToString               public struct POINT               public int X          public int Y           public POINT int x  int y                        this X   x              this Y   y                    This solution is also resolving the problem with too often or too infrequent parameter reading so you can adjust it by yourself  But remember about WPF  method overload with one arg which is representing ticks not milliseconds   TimeSpan 50     ticks

User · Answer

If you try a lot of these answers out on different resolutions  computers with multiple monitors  etc  you may find that they don t work reliably  This is because you need to use a transform to get the mouse position relative to the current screen  not the entire viewing area which consists of all your monitors  Something like this    where  quot this quot  is a WPF window   var transform   PresentationSource FromVisual this  CompositionTarget TransformFromDevice  var mouse   transform Transform GetMousePosition      public System Windows Point GetMousePosition         var point   Forms Control MousePosition      return new Point point X  point Y

User · Answer

If you re looking for a 1 liner  this does well  new Point Mouse GetPosition mWindow  X   mWindow Left  Mouse GetPosition mWindow  Y   mWindow Top   The   mWindow Left and   mWindow Top makes sure the position is in the right place even when the user drags the window around

User · Answer

To follow up on Rachel s answer  Here s two ways in which you can get Mouse Screen Coordinates in WPF  1 Using Windows Forms  Add a reference to System Windows Forms public static Point GetMousePositionWindowsForms         var point   Control MousePosition      return new Point point X  point Y      2 Using Win32  DllImport  quot user32 dll quot     return  MarshalAs UnmanagedType Bool   internal static extern bool GetCursorPos ref Win32Point pt     StructLayout LayoutKind Sequential   internal struct Win32Point       public Int32 X      public Int32 Y     public static Point GetMousePosition         var w32Mouse   new Win32Point        GetCursorPos ref w32Mouse        return new Point w32Mouse X  w32Mouse Y

[wpf] How do I get the current mouse screen coordinates in WPF?

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