this.Location = new Point(
Screen.PrimaryScreen.Bounds.Width/2 - this.Size.Width/2,
Screen.PrimaryScreen.Bounds.Height/2 - this.Size.Height/2
);
* 해상도를 가져오는 방법
1.
Screen.PrimaryScreen.Bounds.Width
Screen.PrimaryScreen.Bounds.Height
2.
System.Windows.Forms.SystemInformation.VirtualScreen.Width;
System.Windows.Forms.SystemInformation.VirtualScreen.Height;