如何获得相对于主屏幕的对象位置

Question

In C#, how can I get an object's position in form relative to primary screen?

I searched a little but I got really confused.

I get the form location and object location and summed but it wasn't correct:

X = this.Location.X + pictureBox1.Location.X;
Y = this.Location.Y + pictureBox1.Location.Y;

I also tried this:

mypoint = pictureBox1.PointToScreen(Point.Empty);

and this:

mypoint =new Point(this.Location.X + pictureBox1.Location.X - Screen.PrimaryScreen.Bounds.Left,
          this.Location.Y + pictureBox1.Location.Y - Screen.PrimaryScreen.Bounds.Top);

I want the pictruebox1 location related to display point(0,0).

Answer 1

pictureBox1.PointToScreen(Point.Empty); is the correct solution. You get it wrong from the location changed event handler maybe it is raised before the form is completely loaded.