C/C++-Codebeispiel: Abrufen von Taskausführungszeiten

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In diesem Beispiel werden die Laufzeiten der Aufgabe abgerufen und auf dem Bildschirm angezeigt. In diesem Beispiel wird davon ausgegangen, dass die Aufgabe und der Testtask bereits auf dem lokalen Computer vorhanden sind.

#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;
}

Aufgabenplaner 1.0 Beispiele