dcsimg
Login | Register   
LinkedIn
Google+
Twitter
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Home » Tip Bank » .NET » C#
Language: .NET
Expertise: Intermediate
May 18, 2016

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


Locking Your Computer with C#

In order to lock your computer, you need to use the following two APIs:

[DllImport("user32.dll")]
        public static extern void LockWorkStation();      
        [DllImport("user32.dll")]
        public static extern int ExitWindowsEx(int uFlags, int dwReason); 

You should implement it as follows:

// Lock computer
      void btnLock_Click(object sender, System.EventArgs e)
      {
         LockWorkStation();
      }
// Log Off
      void btnLogOff_Click(object sender, System.EventArgs e)
      {
         if(DialogResult.Yes==MessageBox.Show("Log Off?","Log Off", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2))
         ExitWindowsEx(0, 0);
      }
   // Shutdown
      void btnShutdown_Click(object sender, System.EventArgs e)
      {
         if(DialogResult.Yes==MessageBox.Show("Shutdown?","Shutdown", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2))
         ExitWindowsEx(1, 0 ); 
Hannes du Preez
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
Thanks for your registration, follow us on our social networks to keep up-to-date