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Voorbeeld van C/C++-code: de Taak MostRecentRun-tijd ophalen

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In dit voorbeeld wordt de tijd opgehaald waarop de taak voor het laatst is uitgevoerd en wordt deze weergegeven op het scherm. In dit voorbeeld wordt ervan uitgegaan dat de taak en de testtaak al bestaan op de lokale computer.

#include <windows.h>
#include <wchar.h>
#include <stdio.h>
#include <initguid.h>
#include <ole2.h>
#include <mstask.h>
#include <msterr.h>


int main(int argc, char **argv)
{
  HRESULT hr = S_OK;
  
  
  ///////////////////////////////////////////////////////////////////
  // Call CoInitialize to initialize the COM library and then
  // call CoCreateInstance to get the Task Scheduler object.
  ///////////////////////////////////////////////////////////////////
  ITaskScheduler *pITS;
  hr = CoInitialize(NULL);
  if (SUCCEEDED(hr))
  {
    hr = CoCreateInstance(CLSID_CTaskScheduler,
                          NULL,
                          CLSCTX_INPROC_SERVER,
                          IID_ITaskScheduler,
                          (void **) &pITS);
    if (FAILED(hr))
    {
      CoUninitialize();
      return 1;
    }
  }
  else
  {
    return 1;
  }
  
  
  ///////////////////////////////////////////////////////////////////
  // Call ITaskScheduler::Activate to get the Task object.
  ///////////////////////////////////////////////////////////////////
  ITask *pITask;
  LPCWSTR lpcwszTaskName = L"Test Task";
  hr = pITS->Activate(lpcwszTaskName,
                      IID_ITask,
                      (IUnknown**) &pITask);
  
  // Release ITaskScheduler interface.
  pITS->Release();

  if (FAILED(hr))
  {
    wprintf(L"Failed calling ITaskScheduler::Activate: ");
    wprintf(L"error = 0x%x\n",hr);
    CoUninitialize();
    return 1;
  }
  
  
  ///////////////////////////////////////////////////////////////////
  // Call ITask::GetMostRecentRunTime and display the most recent 
  // run time of this task.
  ///////////////////////////////////////////////////////////////////

  SYSTEMTIME pstLastRun;
    
  hr = pITask->GetMostRecentRunTime(&pstLastRun);
  
  // Release the ITask interface.
  pITask->Release();

  if (FAILED(hr))
  {
    wprintf(L"Failed calling GetMostRecentRunTime: ");
    wprintf(L"error = 0x%x\n", hr);
    CoUninitialize();
    return 1;
  }

  wprintf(L"The most recent run time for this task was: \n");
  wprintf(L"  %u/%u/%u \t %u:%02u\n", pstLastRun.wMonth,
                                      pstLastRun.wDay,
                                      pstLastRun.wYear,
                                      pstLastRun.wHour,
                                      pstLastRun.wMinute);
 

  CoUninitialize();

  return 0;
}

Task Scheduler 1.0-voorbeelden