using System; using System.Drawing; using System.Windows.Forms; class LineArcCombo: Form { public static void Main() { Application.Run(new LineArcCombo()); } public LineArcCombo() { ResizeRedraw = true; } protected override void OnPaint(PaintEventArgs pea) { DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height); } protected void DoPage(Graphics grfx, Color clr, int cx, int cy) { Pen pen = new Pen(clr, 25); grfx.DrawLine(pen, 25, 100, 125, 100); grfx.DrawArc (pen, 125, 50, 100, 100, -180, 180); grfx.DrawLine(pen, 225, 100, 325, 100); } }
Wide Polyline: DrawLines
using System; using System.Drawing; using System.Windows.Forms; class WidePolyline: Form { public static void Main() { Application.Run(new WidePolyline()); } public WidePolyline() { ResizeRedraw = true; } protected override void OnPaint(PaintEventArgs pea) { DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height); } protected void DoPage(Graphics grfx, Color clr, int cx, int cy) { Pen pen = new Pen(clr, 25); grfx.DrawLines(pen, new Point[] { new Point( 25, 100), new Point(125, 100), new Point(125, 50), new Point(225, 50), new Point(225, 100), new Point(325, 100) }); } }
Graphics: FillEllipse
using System; using System.Drawing; using System.Windows.Forms; class FourByFours: Form { public static void Main() { Application.Run(new FourByFours()); } public FourByFours() { Text = "Four by Fours"; ResizeRedraw = true; } protected override void OnPaint(PaintEventArgs pea) { DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height); } protected void DoPage(Graphics grfx, Color clr, int cx, int cy) { Pen pen = new Pen(clr); Brush brush = new SolidBrush(clr); grfx.FillEllipse(brush, new Rectangle(14, 8, 4, 4)); } }
Graphics: FillRectangle
using System; using System.Drawing; using System.Windows.Forms; class FourByFours: Form { public static void Main() { Application.Run(new FourByFours()); } public FourByFours() { ResizeRedraw = true; } protected override void OnPaint(PaintEventArgs pea) { DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height); } protected void DoPage(Graphics grfx, Color clr, int cx, int cy) { Pen pen = new Pen(clr); Brush brush = new SolidBrush(clr); grfx.FillRectangle(brush, new Rectangle(2, 8, 4, 4)); } }
Graphics: FillRectangles
using System; using System.Drawing; using System.Windows.Forms; class FourByFours: Form { public static void Main() { Application.Run(new FourByFours()); } public FourByFours() { Text = "Four by Fours"; ResizeRedraw = true; } protected override void OnPaint(PaintEventArgs pea) { DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height); } protected void DoPage(Graphics grfx, Color clr, int cx, int cy) { Pen pen = new Pen(clr); Brush brush = new SolidBrush(clr); grfx.FillRectangles(brush, new Rectangle[] {new Rectangle(8, 8, 4, 4)}); } }
One-Inch Ellipse
using System; using System.Drawing; using System.Windows.Forms; class TryOneInchEllipse: Form { public static void Main() { Application.Run(new TryOneInchEllipse()); } public TryOneInchEllipse() { ResizeRedraw = true; } protected override void OnPaint(PaintEventArgs pea) { DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height); } protected void DoPage(Graphics grfx, Color clr, int cx, int cy) { grfx.DrawEllipse(new Pen(clr), 0, 0, grfx.DpiX, grfx.DpiY); } }
FillPolygon: Alternate and Winding Fill Modes
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
class FillModesClassical : Form {
public static void Main() {
Application.Run(new FillModesClassical());
}
public FillModesClassical() {
ResizeRedraw = true;
ClientSize = new Size(2 * ClientSize.Height, ClientSize.Height);
}
protected override void OnPaint(PaintEventArgs pea) {
DoPage(pea.Graphics, ForeColor, ClientSize.Width, ClientSize.Height);
}
protected void DoPage(Graphics grfx, Color clr, int cx, int cy) {
Brush brush = new SolidBrush(clr);
Point[] apt = new Point[5];
for (int i = 0; i < apt.Length; i++) { double dAngle = (i * 0.8 - 0.5) * Math.PI; apt[i] = new Point( (int)(cx * (0.25 + 0.24 * Math.Cos(dAngle))), (int)(cy * (0.50 + 0.48 * Math.Sin(dAngle)))); } grfx.FillPolygon(brush, apt, FillMode.Alternate); } } [/csharp]