วิธีการกำหนด position ของ From ให้ ตรึงตำแหน่งของ app ตามท่ี่เรากำหนด ครับผม

int deskHeight = Screen.PrimaryScreen.Bounds.Height;
Screen.PrimaryScreen.Bounds.Width deskWidth = default(Screen.PrimaryScreen.Bounds.Width);

MessageBox.Show("Your screen resolution is " + deskWidth + "x" + deskHeight);

int deskHeight = Screen.PrimaryScreen.Bounds.Height;
int deskWidth = Screen.PrimaryScreen.Bounds.Width;

MessageBox.Show("Your screen resolution is " + deskWidth.ToString() + "x" + deskHeight.ToString());