using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
class PenDashCaps: Form
{
MenuItem miChecked;
public static void Main()
{
Application.Run(new PenDashCaps());
}
public PenDashCaps()
{
ResizeRedraw = true;
Menu = new MainMenu();
Menu.MenuItems.Add("&Width");
int[] aiWidth = { 1, 2, 5, 10, 15, 20, 25 };
foreach (int iWidth in aiWidth)
Menu.MenuItems[0].MenuItems.Add(iWidth.ToString(),
new EventHandler(MenuWidthOnClick));
miChecked = Menu.MenuItems[0].MenuItems[0];
miChecked.Checked = true;
}
void MenuWidthOnClick(object obj, EventArgs ea)
{
miChecked.Checked = false;
miChecked = (MenuItem) obj;
miChecked.Checked = true;
Invalidate();
}
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, Convert.ToInt32(miChecked.Text));
pen.DashStyle = DashStyle.DashDotDot;
foreach (DashCap dc in Enum.GetValues(typeof(DashCap)))
{
pen.DashCap = dc;
grfx.DrawLine(pen, cx / 8, cy / 4, 7 * cx / 8, cy / 4);
grfx.TranslateTransform(0, cy / 4);
}
}
}
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