Delen via

Voorbeeld van C/C++-code: uitvoeringstijden voor taken ophalen

  • Artikel

In dit voorbeeld worden de uitvoeringstijden van de taak opgehaald en 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 the 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::GetRunTimes and display the next five run times for 
  // this task.
  ///////////////////////////////////////////////////////////////////
  
  SYSTEMTIME stNow;
  LPSYSTEMTIME pstListOfTimes;
  LPSYSTEMTIME pstListBegin;
  WORD wCountOfRuns = 5;
  
  GetSystemTime(&stNow);
  hr = pITask->GetRunTimes(&stNow,
                           NULL,
                           &wCountOfRuns,
                           &pstListBegin);
  pstListOfTimes = pstListBegin;
  
  // Release the ITask interface.
  pITask->Release();
  
  if (FAILED(hr))
  {
    wprintf(L"Failed calling GetRunTimes: ");
    wprintf(L"error = 0x%x\n", hr);
    CoUninitialize();
    return 1;
  }
  
  wprintf(L"The next %u runtimes for this task are: \n",wCountOfRuns);
  
  for (WORD i = 0; i < wCountOfRuns; i++)
  {
    wprintf(L"\t%u - %u/%u/%u \t %u:%u\n", i+1, pstListOfTimes->wMonth,
                                                pstListOfTimes->wDay,
                                                pstListOfTimes->wYear,
                                                pstListOfTimes->wHour,
                                                pstListOfTimes->wMinute);
    pstListOfTimes++;
  }

  CoTaskMemFree(pstListBegin);
  CoTaskMemFree(pstListOfTimes);
  CoUninitialize();

  return 0;
}

Task Scheduler 1.0-voorbeelden