C/C++-kodexempel: Hämtar aktiviteten MaxRunTime

Det här exemplet hämtar den maximala tid som aktiviteten kan köras (i millisekunder) och visar talet på skärmen. Det här exemplet förutsätter att uppgiften och testuppgiften redan finns på den lokala datorn.

#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"Test Task";
  hr = pITS->Activate(lpcwszTaskName,
                      IID_ITask,
                      (IUnknown**) &pITask);
  
  pITS->Release();
  if (FAILED(hr))
  {
     wprintf(L"Failed calling ITaskScheduler::Activate;\n");
     wprintf(L"error = 0x%x\n",hr);
     CoUninitialize();
     return 1;
  }
  
  
  ///////////////////////////////////////////////////////////////////
  // Call ITask::GetMaxRunTime to display the maximum time Test Task
  // is allowed to run.
  ///////////////////////////////////////////////////////////////////
  
  DWORD pdwRunTime;
  hr = pITask->GetMaxRunTime(&pdwRunTime);
  pITask->Release();
  if (FAILED(hr))
  {
     wprintf(L"Failed calling ITask::GetMaxRunTime: \n");
     wprintf(L"error = 0x%x\n",hr);
     CoUninitialize();
     return 1;
  }
  
  wprintf(L"Test Task can run for %d milliseconds\n", pdwRunTime);
  CoUninitialize();
  return 0;
}

Relaterade ämnen

Task Scheduler 1.0 Exempel