■ Control 클래스의 SetStyle 메소드를 사용해 깜박임을 방지하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Drawing; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 크기 /// </summary> private Size size = new Size(20, 20); /// <summary> /// 위치 /// </summary> private Point position = new Point(20, 20); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 위치 - Position /// <summary> /// 위치 /// </summary> public Point Position { get { return this.position; } set { if(value.X < 0) { this.position.X = ClientSize.Width - this.size.Width; } else if(value.X + this.size.Width > ClientSize.Width) { this.position.X = 0; } else { this.position.X = value.X; } if(value.Y < 0) { this.position.Y = ClientSize.Height - this.size.Height; } else if(value.Y + this.size.Height > ClientSize.Height) { this.position.Y = 0; } else { this.position.Y = value.Y; } } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); SetStyle(ControlStyles.DoubleBuffer , true); SetStyle(ControlStyles.UserPaint , true); SetStyle(ControlStyles.AllPaintingInWmPaint, true); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 페인트시 처리하기 - OnPaint(e) /// <summary> /// 페인트시 처리하기 /// </summary> /// <param name="e">이벤트 발생자</param> protected override void OnPaint(PaintEventArgs e) { e.Graphics.FillRectangle ( new SolidBrush(Color.Red), Position.X, Position.Y, this.size.Width, this.size.Height ); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 폼 로드시 처리하기 - Form_Load(sender, e) /// <summary> /// 폼 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Load(object sender, EventArgs e) { this.timer.Start(); } #endregion #region 폼 키 눌림시 처리하기 - Form_KeyDown(sender, e) /// <summary> /// 폼 키 눌림시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_KeyDown(object sender, KeyEventArgs e) { if(e.KeyValue == 37) { Position = new Point(Position.X - this.size.Width, Position.Y); } if(e.KeyValue == 38) { Position = new Point(Position.X, Position.Y - this.size.Width); } if(e.KeyValue == 39) { Position = new Point(Position.X + this.size.Height, Position.Y); } if(e.KeyValue == 40) { Position = new Point(Position.X, Position.Y + this.size.Height); } } #endregion #region 타이머 틱 발생시 처리하기 - timer_Tick(sender, e) /// <summary> /// 타이머 틱 발생시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void timer_Tick(object sender, EventArgs e) { Text = string.Format("{0} {1}", DateTime.Now, Position); Refresh(); } #endregion } } |
