C#

Bitmap b = Image.FromFile(path);
using (Graphics g = Graphics.FromImage(b))
    {
    g.DrawLine(Pens.Black, 0,0, 100, 100);
    g.DrawString("Hello", Font, Brushes.Black, new Point(0, 0));
    }

Chesnokov Yuriy wrote:

NETWORK SERVICE identifiers

Chesnokov Yuriy wrote:

get built-in users

SelectQuery query = new SelectQuery("Win32_UserAccount");
ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
foreach (ManagementObject managementObject in searcher.Get())
{
    Console.WriteLine("Username: {0}", managementObject["Name"]);
}

namespace WindowsFormsApplication1
{

    // You need all these.
    using System;
    using System.Drawing;
    using System.Windows.Forms;


    // Code for main form.
    public partial class Form1 : Form
    {

        // Boilerplate code.
        public Form1()
        {
            InitializeComponent();
        }


        // The button was clicked.
        private void button1_Click(object sender, EventArgs e)
        {

            // Make sure you can see the circle.
            this.Width = 600;
            this.Height = 700;


            // Surface to draw on.
            Graphics g = this.CreateGraphics();


            // Color to draw with.
            Brush b = new SolidBrush(Color.Green);


            // Draw circle.
            g.FillEllipse(b, new Rectangle(0, 0, 500, 500));

        }

    }

}

Som Shekhar wrote:

Dispose the graphics object after you are done with it. This is a major source of memory leak.

aspdotnetdev wrote:

Why would the Graphics object be a source for a memory leak?

using(Graphics g = CreateGraphics())
   {
   ... use the Graphics object
   }