
This is the Title of the Book, eMatter Edition
Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.
Using Event Logs in Your Application
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SecurityFailure = 5,
SecurityPotentiallyCompromised = 6
}
public enum CategoryType : short
{
None = 0,
WriteToDB = 1,
ReadFromDB = 2,
WriteToFile = 3,
ReadFromFile = 4,
AppStartUp = 5,
AppShutDown = 6,
UserInput = 7
}
Discussion
The AppEvents class created for this recipe provides applications with an easy-to-use
interface for creating, using, and deleting single or multiple event logs in your appli-
cation. Support for multiple logs comes in handy when one log needs to be created
and maintained on the local computer and another duplicate log needs to be created
and maintained on a remote machine. This remote machine might contain logs of all
running instances of your application on each user’s machine. An administrator
could use these logs to quickly discover if any problems occur or security is breached
in your application. In fact, an application could be run in the background on the
remote administrative machine that watches for specific log entries to be written to
this log from any user’s machine. Recipe 8.9 uses an event mechanism to watch for
entries written to an event log and could easily be used to enhance this recipe.
The methods of the
AppEvents class are described as follows:
WriteToLog
This method is overloaded to allow an entry to ...