CodeProject: Processing Global Mouse and Keyboard Hooks in C#. - The Diigo Meta page

• 17 Jul 08
  

  stefan stoichev

  asp asp.net hook capture

  • public partial class frmMain : Form
    {
    private gma.System.Windows.UserActivityHook actHook;
    private bool bCtrl = false;
    private bool bAlt = false;
    
    private void frmMain_Load(object sender, EventArgs e)
    {
    actHook = new gma.System.Windows.UserActivityHook(false, true);
    
    actHook.KeyDown += new KeyEventHandler(actHook_KeyDown);
    actHook.KeyUp += new KeyEventHandler(actHook_KeyUp);
    }
    
    void actHook_KeyUp(object sender, KeyEventArgs e)
    {
    if (e.KeyCode == Keys.LControlKey || e.KeyCode == Keys.RControlKey)
    {
    bCtrl = false;
    }
    if (e.KeyCode == Keys.LMenu || e.KeyCode == Keys.RMenu)
    {
    bAlt = false;
    }
    }
    
    void actHook_KeyDown(object sender, KeyEventArgs e)
    {
    if (e.KeyCode == Keys.LControlKey || e.KeyCode == Keys.RControlKey)
    {
    bCtrl = true;
    }
    if (e.KeyCode == Keys.LMenu || e.KeyCode == Keys.RMenu)
    {
    bAlt = true;
    }
    if (e.KeyCode == Keys.D1 && bAlt && bCtrl)
    {
    // Handle "ctrl + alt + 1" here
    }
    }
    }

Would you like to comment?

Join Diigo for a free account, or sign in if you are already a member.