moving window with .position across monitors with multiple dpi has the wrong size

// The position of the window is displayed when it is
// external from Unity.
using UnityEngine;
using UnityEditor;
public class PositionExample : EditorWindow
{
    Vector2Int p1;
    Vector2Int p2;
    bool showBtn = true;    [MenuItem("Examples/position")]
    static void Init()
    {
        GetWindow<PositionExample>("position");
    }    void OnGUI()
    {
        Rect r = position;
        GUILayout.Label($"Position: {r.x}x{r.y}({r.width}-{r.height})");        p1 = EditorGUILayout.Vector2IntField("Set the position:", p1);
        p2 = EditorGUILayout.Vector2IntField("Set the size:", p2);
        if (showBtn)
        {
            if (GUILayout.Button("Accept new position"))
            {
                r.x = p1.x;
                r.y = p1.y;
                r.width = p2.x;
                r.height = p2.y;                position = r;
            }
        }
    }
}