Csharp/C Sharp by API/System.Drawing/Brushes

Brushes.Black

  
using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
public class Form1 : Form {
    protected override void OnPaint(PaintEventArgs e) {
    Graphics g = e.Graphics;
    g.FillRectangle(Brushes.White, this.ClientRectangle);
    Font font = new Font("Times New Roman", 12, FontStyle.Regular);
    Font bfont = new Font("Times New Roman", 12, FontStyle.Bold);
    Font ifont = new Font("Times New Roman", 12, FontStyle.Italic);
    Font bifont = new Font("Times New Roman", 12,FontStyle.Bold | FontStyle.Italic);
    Font sfont = new Font("Times New Roman", 12, FontStyle.Strikeout);
    Font ufont = new Font("Times New Roman", 12, FontStyle.Underline);
    Font bsfont = new Font("Times New Roman", 12,FontStyle.Bold | FontStyle.Strikeout);
    int h = font.Height;
    g.DrawString("Regular", font, Brushes.Black, 0, 0);
    g.DrawString("Bold", bfont, Brushes.Black, 0, h);
    g.DrawString("Italic", ifont, Brushes.Black, 0, h * 2);
    g.DrawString("Bold-Italic", bifont, Brushes.Black, 0, h * 3);
    g.DrawString("Strikeout", sfont, Brushes.Black, 0, h * 4);
    g.DrawString("Underline", ufont, Brushes.Black, 0, h * 5);
    g.DrawString("Bold & Strikeout", bsfont, Brushes.Black, 0, h * 6);
    font.Dispose();
    bfont.Dispose();
    ifont.Dispose();
    bifont.Dispose();
    sfont.Dispose();
    ufont.Dispose();
    bsfont.Dispose();
    }
    public static void Main() {
        Application.Run(new Form1());
    }
}

Brushes.Firebrick

 
using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
public class MainForm : Form {
    private List<Point> myPts = new List<Point>();
    public MainForm() {
        this.Text = "Basic Paint Form";
//        this.Paint += new PaintEventHandler(MainForm_Paint);
        this.MouseDown += new MouseEventHandler(MainForm_MouseDown);
    }
    void MainForm_MouseDown(object sender, MouseEventArgs e) {
        myPts.Add(new Point(e.X, e.Y));
        Invalidate();
    }
    public void OnPaint(PaintEventArgs e) {
        Graphics g = e.Graphics;
        g.DrawString("Hello GDI+", new Font("Times New Roman", 20),Brushes.Green, 0, 0);
        foreach (Point p in myPts)
            g.FillEllipse(Brushes.Firebrick, p.X, p.Y, 10, 10);
    }
}

Brushes.White

  

  using System;
  using System.Drawing;
  using System.Drawing.Drawing2D;
  using System.Collections;
  using System.ruponentModel;
  using System.Windows.Forms;
  using System.Data;
  public class Form1 : System.Windows.Forms.Form
  {
    public Form1()
    {
      InitializeComponent();
    }
    private void InitializeComponent()
    {
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(292, 273);
      this.Text = "Pen Cap App";
      this.Resize += new System.EventHandler(this.Form1_Resize);
      this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
    }
    static void Main() 
    {
      Application.Run(new Form1());
    }
    private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
    {      
      Graphics g = e.Graphics;
      GraphicsPath gp = new GraphicsPath();
      gp.AddLine(10, 10, 110, 15);
      gp.AddLine(110, 15, 100, 95);
      gp.AddLine(100, 95, 15, 110);
      gp.CloseFigure();
      g.FillRectangle(Brushes.White, this.ClientRectangle);
      g.SmoothingMode = SmoothingMode.AntiAlias;
      PathGradientBrush pgb = new PathGradientBrush(gp);
      pgb.CenterColor = Color.White;
      pgb.SurroundColors = new Color[] { Color.Red };
      g.FillPath(pgb, gp);
      g.DrawPath(Pens.Black, gp);
      pgb.Dispose();
      gp.Dispose();
    }
    private void Form1_Resize(object sender, System.EventArgs e)
    {
      Invalidate();
    }
  }