KB199060 - PRB: ATL Service Run from the IDE Doesn't Log Events to Console

RESOLUTION

Edit CServiceModule::Start() to initialize stdout as desired (that is, redirect it either to a console or to a file). The code to do this is in the More Information section below.

Replace _putts() with ATLTRACE().

Redirecting the output of the application to a file, in a console window. For example:

MyApp.exe > output.txt

In CServiceModule::LogEvent(), remove the "if" statement and _putts() statement, so that the output always goes to the application log file.

MORE INFORMATION

To correct this problem, the developer should edit CServiceModule::Start() as follows:

inline void CServiceModule::Start()
   {
       SERVICE_TABLE_ENTRY st[] =
      {
           { m_szServiceName, _ServiceMain },
           { NULL, NULL }
       };
       if (m_bService && !::StartServiceCtrlDispatcher(st))
       {
           m_bService = FALSE;
       }
       if (m_bService == FALSE)
       {
           // Allocate a new console.
           AllocConsole();
           // Redirect stdout to the console.
           freopen("CONOUT$", "wta+", stdout);
           Run();
           // Free the console.
           FreeConsole();
       }
   }

If the logs should be sent to a file, just redirect stdout to that file, without allocating/freeing the console.

Steps to Reproduce Behavior

Create a new project with ATL COM AppWizard. In step 1, specify Server Type as Service(EXE).
Build the project.
Execute the project either from the command line or from the IDE.

Notice that the message "Service started" does not appear anywhere.
Make the changes outlined in the first resoultion.
Build and run.

You'll notice a new console displaying the message "Service started."

PRB: ATL Service Run from the IDE Doesn't Log Events to Console

SYMPTOMS

CAUSE

RESOLUTION

MORE INFORMATION

Steps to Reproduce Behavior