Contoh Kode C/C++: Mengambil Kode Keluar Tugas

Contoh ini mengambil kode keluar terakhir yang dikembalikan oleh tugas yang diketahui. (Nilai "0" yang dikembalikan menunjukkan tugas tidak pernah dijalankan.) Contoh ini mengasumsikan bahwa tugas dan tugas pengujian sudah ada di komputer lokal.

#include <windows.h>
#include <initguid.h>
#include <ole2.h>
#include <mstask.h>
#include <msterr.h>
#include <wchar.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;
  lpcwszTaskName = L"TestTask";
  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::GetExitCode. Note that this method is 
  // inherited from IScheduledWorkItem.
  ///////////////////////////////////////////////////////////////////
  DWORD pdwExitCode;
  
  hr = pITask->GetExitCode(&pdwExitCode);
  
  // Release ITask interface.
  pITask->Release();
  
  if (FAILED(hr))
  {
    wprintf(L"Failed calling ITask::GetExitCode: ");
    wprintf(L"error = 0x%x\n",hr);
    CoUninitialize();
    return 1;
  }
  
  
  wprintf(L"The last exit code of Test Task is: %d\n", pdwExitCode);
  
  
  CoUninitialize();
  return 0;
}

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