@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: Clears the specified Event Log (and optionally backs it up first) !!!!C# Signature: [DllImport("advapi32.dll", SetLastError=true, EntryPoint="ClearEventLog")] [return: MarshalAs(UnmanagedType.U1)] public static extern bool ClearEventLog( IntPtr hEventLog, [MarshalAs(UnmanagedType.LPStr)] String lpBackupFileName); !!!!VB Signature: Declare Function ClearEventLog Lib "advapi32.dll" (TODO) As TODO !!!!User-Defined Types: None. !!!!Alternative Managed API: EventLog.Clear() http://msdn.microsoft.com/es-es/library/system.diagnostics.eventlog.clear.aspx !!!!Notes: hEventLog is the handle for the log you wish to operate on, this handle can be got from OpenEventLog if needed. !!!!Tips & Tricks: Please add some! !!!!Sample Code: Quick and cheerful, this routine will attempt to save and clear the specified EventLog to the specified folder. Boolean ClearAndSavelog (string logName, string savePath) { // EventLog Handle IntPtr hEventLog = IntPtr.Zero; // Return status flag Boolean Result = false; try { // Attempt to acquire a handle to our event log. hEventLog = NativeMethods.OpenEventLog(IntPtr.Zero, logName); if (hEventLog == IntPtr.Zero) { // Wrap in an exception and throw the error upwards. throw new Win32Exception(Marshal.GetLastWin32Error()); } // Construct a full filename string. String FullSavePath = (_ReportLocation + @"\" + logName + " EVENTLOGDUMP " + ".evt"); // Attempt to clear and save the eventlog. Boolean success = NativeMethods.ClearEventLog(hEventLog, savePath); if (!success) { // Wrap in an exception and throw the error upwards. throw new Win32Exception(Marshal.GetLastWin32Error()); } // All operations completed OK. Result = true; } catch (Win32Exception ex) { // TODO: Error handling/logging. } finally { // Ensure any open handle is closed. if (hEventLog) { NativeMethods.CloseEventLog(hEventLog); } } return Result; } Documentation: ClearEventLog@msdn on MSDN
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