ممکنه در مورد این کد توضیح بدین
من از پارامتر e چیزی نفهمیدمکد HTML:private Rectangle RcDraw; private float PenWidth = 5; private void Form1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) { // Determine the initial rectangle coordinates... RcDraw.X = e.X; RcDraw.Y = e.Y; } private void Form1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) { // Determine the width and height of the rectangle... if(e.X < RcDraw.X) { RcDraw.Width = RcDraw.X - e.X; RcDraw.X = e.X; } else { RcDraw.Width = e.X - RcDraw.X; } if(e.Y < RcDraw.Y) { RcDraw.Height = RcDraw.Y - e.Y; RcDraw.Y = e.Y; } else { RcDraw.Height = e.Y - RcDraw.Y; } // Force a repaint of the region occupied by the rectangle... this.Invalidate(RcDraw); } private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { // Draw the rectangle... e.Graphics.DrawRectangle(new Pen(Color.Blue, PenWidth), RcDraw); }
ممنون
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