Exemple de code C/C++ : modification d’un élément de travail
Cet exemple montre comment afficher les pages de propriétés d’une tâche connue et autoriser un utilisateur à modifier les propriétés de l’élément de travail. Cet exemple suppose que la tâche et la tâche de test existent déjà sur l’ordinateur local.
#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);
//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::EditWorkItem. Note that this method is
// inherited from IScheduledWorkItem.
///////////////////////////////////////////////////////////////////
HWND hParent = NULL;
DWORD dwReserved = 0;
hr = pITask->EditWorkItem(hParent,
dwReserved);
// Release ITask interface
pITask->Release();
if (FAILED(hr))
{
wprintf(L"Failed calling ITask::EditWorkItem, ");
wprintf(L"error = 0x%x\n",hr);
CoUninitialize();
return 1;
}
CoUninitialize();
return 0;
}
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