Getting mouse position in c#

问题:

How do I get the mouse position? I want it in term of screen position.

I start my program I want to set to the current mouse position.

Location.X = ??
Location.Y = ??

Edit: This must happen before the form is created.

回答1:

You should use System.Windows.Forms.Cursor.Position: \"A Point that represents the cursor\'s position in screen coordinates.\"

回答2:

If you don\'t want to reference Forms you can use interop to get the cursor position:

/// <summary>
/// Struct representing a point.
/// </summary>
[StructLayout(LayoutKind.Sequential)]
public struct POINT
{
    public int X;
    public int Y;

    public static implicit operator Point(POINT point)
    {
        return new Point(point.X, point.Y);
    }
}

/// <summary>
/// Retrieves the cursor\'s position, in screen coordinates.
/// </summary>
/// <see>See MSDN documentation for further information.</see>
[DllImport(\"user32.dll\")]
public static extern bool GetCursorPos(out POINT lpPoint);

public static Point GetCursorPosition()
{
    POINT lpPoint;
    GetCursorPos(out lpPoint);
    //bool success = User32.GetCursorPos(out lpPoint);
    // if (!success)

    return lpPoint;
}

回答3:

Cursor.Position will get the current screen poisition of the mouse (if you are in a Control, the MousePosition property will also get the same value).

To set the mouse position, you will have to use Cursor.Position and give it a new Point:

Cursor.Position = new Point(x, y);

You can do this in your Main method before creating your form.

回答4:

To answer your specific example:

// your example
Location.X = Cursor.Position.X;
Location.Y = Cursor.Position.Y;

// sample code
Console.WriteLine(\"x: \" + Cursor.Position.X + \" y: \" + Cursor.Position.Y);

Don\'t forget to add using System.Windows.Forms;, and adding the reference to it (right click on references > add reference > .NET tab > Systems.Windows.Forms > ok)

回答5:

System.Windows.Forms.Control.MousePosition

Gets the position of the mouse cursor in screen coordinates. \"The Position property is identical to the Control.MousePosition property.\"

回答6:

To get the position look at the OnMouseMove event. The MouseEventArgs will give you the x an y positions...

protected override void OnMouseMove(MouseEventArgs mouseEv) 

To set the mouse position use the Cursor.Position property.

http://msdn.microsoft.com/en-us/library/system.windows.forms.cursor.position.aspx

回答7:

   internal static class CursorPosition {
  [StructLayout(LayoutKind.Sequential)]
  public struct PointInter {
     public int X;
     public int Y;
     public static explicit operator Point(PointInter point) => new Point(point.X, point.Y);       
  }

  [DllImport(\"user32.dll\")]
  public static extern bool GetCursorPos(out PointInter lpPoint);

  // For your convenience
  public static Point GetCursorPosition() {
     PointInter lpPoint;
     GetCursorPos(out lpPoint);
     return (Point) lpPoint;
  }

}

回答8:

Initialize the current cursor. Use it to get the position of X and Y

this.Cursor = new Cursor(Cursor.Current.Handle);
int posX = Cursor.Position.X;
int posY = Cursor.Position.Y;

回答9:

Also, if you need to get current position in form\'s area, try:

Console.WriteLine(\"Current mouse position in form\'s area is \" + 
    (Control.MousePosition.X - this.Location.X - 8).ToString() +
    \"x\" + 
    (Control.MousePosition.Y - this.Location.Y - 30).ToString()
);

Although, 8 and 30 integers were found by experimenting.

Would be awesome if someone could explain why exactly these.