C# Cursor position relative to application

Question

I would like to have a context menu pop up, if I perform a right click somewhere on my TreeView (not the individual nodes).

This kinda works but the menu pops up way off the click position. I tried it with this trick HERE but it doesn't work.

Here is my code and a scrrenshot. Any ideas ?

    private void Mainform_TreeView_MouseDown(object sender, MouseEventArgs e)
    {
        contextMenuStrip1.Show(PointToClient(Cursor.Position));
    }

Answer 1

Ah...the overload that accepts only a Point expects Screen Coords, so you simply need:

contextMenuStrip1.Show(Cursor.Position);