1. this .FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; this .WindowState = FormWindowState.Maximized; 출처: https://outshine90.tistory.com/entry/폼-FullScreen [처음] 2. fullScrenn_bounds = Rectangle.Empty; foreach (var screen in Screen.AllScreens) { fullScrenn_bounds = Rectangle.Union(fullScrenn_bounds, screen.Bounds); } this .ClientSize = new Size(fullScrenn_bounds.Width, fullScrenn_bounds.Height); this .Location = new Point(fullScrenn_bounds.Left, fullScrenn_bounds.Top) 출처: https://outshine90.tistory.com/entry/폼-FullScreen [처음] 3. this .StartPosition = FormStartPosition.Manual; fullScrenn_bounds = Rectangle.Empty; foreach (var screen in Screen.AllScreens) { fullScrenn_bounds = Rectangle.Union(fullScrenn_bounds, screen.Bounds); } this .ClientSize =...