C# System wide shortcut keys | Global Hot-key in C#

1. using System;
2. using System.Runtime.InteropServices;
3. using System.Windows.Forms;
5. namespace WindowsFormsApplication1
6. {
7.         public partial class Form1 : Form
8.         {
9.                 private static int _hookHandle = 0;
11.                 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
12.                 public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, intthreadId);
14.                 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
15.                 public static extern bool UnhookWindowsHookEx(int idHook);
17.                 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
18.                 public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);
20.                 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
21.                 public static extern short GetKeyState(int nVirtKey);
23.                 public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);
25.                 public const int WH_KEYBOARD_LL = 13; 
26.                 public const int VK_LCONTROL = 0xA2;
27.                 public const int VK_RCONTROL = 0xA3;
29.                 public Form1()
30.                 {
31.                         InitializeComponent();
32.                         SetHook();
33.                 }
34. 
    

Port Check Tool In C#

Simple port check tool for windows

Tool Download here...

Link	Type	Size
download	7z	12KB
download	exe	75KB

C# Source download

1. using System;
2. using System.Windows.Forms;
3. using System.Net.Sockets;
5. namespace PortCheck
6. {
7.     public partial class Form1 : Form
8.     {
9.         public Form1()
10.         {
11.             InitializeComponent();
12.         }
14.         private void btnCheck_Click(object sender, EventArgs e)
15.         {
16.             TcpClient cli = new TcpClient();
17.             int port = 0;
18.             string ip;
19.             try
20.             {
21.                 port = Convert.ToInt32(txtPort.Text.Trim());
22.                 ip = txtIP.Text.Length > 7 ? txtIP.Text : "0.0.0.0";
23.                 cli.Connect(ip, port);
24.                 MessageBox.Show(cli.Connected == true ? "Port Opened" : "Port Closed", this.Text);
25.             }
26.             catch (Exception ex) { MessageBox.Show(ex.Message, this.Text); }
28.         }
29.     }
30. }

Limitations of SQL Server 2008 R2 Express

1. Maximum 10 GB per database.

2. Uses no more than 1 processor.

3. Uses no more than 1 GB of internal memory.

4. NO Maintenance plans

5. NO Database mail

6. NO User instances

7. SQL Server Agent

8. NO Full-text search

Google Start Rewards Program

Program Rules

On October 9, 2013, we announced a new, experimental program that rewards proactive security improvements to select open-source projects. This effort complements and extends our long-running vulnerability reward programs for Google web applications and for Google Chrome.

Reward amounts

Rewards for qualifying submissions will range from $500 to $3,133.7. The final amount is always chosen at the discretion of the reward panel and is based on our judgment of the complexity and impact of the patch.

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