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Exemplo de código C/C++: recuperando a tarefa NextRun Time

  • Artigo

Este exemplo recupera a próxima vez que a tarefa é agendada para ser executada e exibe essa hora na tela. Este exemplo pressupõe que a tarefa e a tarefa de teste já existem no computador local.

#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::GetNextRunTime and display next run time of 
  // this task.
  ///////////////////////////////////////////////////////////////////

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

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

  wprintf(L"The next runtime for this task is: \n");
  wprintf(L"  %u/%u/%u \t %u:%02u\n", pstNextRun.wMonth,
                                      pstNextRun.wDay,
                                      pstNextRun.wYear,
                                      pstNextRun.wHour,
                                      pstNextRun.wMinute);
 

  CoUninitialize();

  return 0;
}

Exemplos do Agendador de Tarefas 1.0