public static void Main()
{
// Create a string representing the current user.
string user = Environment.UserDomainName + "\\" +
Environment.UserName;
// Create a security object that grants no access.
EventWaitHandleSecurity mSec = new EventWaitHandleSecurity();
// Add a rule that grants the current user the
// right to wait on or signal the event and read the
// permissions on the event.
EventWaitHandleAccessRule rule = new EventWaitHandleAccessRule(user,
EventWaitHandleRights.Synchronize | EventWaitHandleRights.Modify
| EventWaitHandleRights.ReadPermissions,
AccessControlType.Allow);
mSec.AddAccessRule(rule);
// Add a rule that denies the current user the
// right to change permissions on the event.
rule = new EventWaitHandleAccessRule(user,
EventWaitHandleRights.ChangePermissions,
AccessControlType.Deny);
mSec.AddAccessRule(rule);
// Display the rules in the security object.
ShowSecurity(mSec);
// Create a rule that grants the current user
// the full control over the event. Use the
// ResetAccessRule method to replace both of
// the existing rules with the new rule.
rule = new EventWaitHandleAccessRule(user,
EventWaitHandleRights.FullControl,
AccessControlType.Allow);
mSec.ResetAccessRule(rule);
ShowSecurity(mSec);
}