Exemple de code C/C++ : récupération de chaînes de déclencheur
Cet exemple récupère une chaîne de déclencheur pour tous les déclencheurs associés à une tâche connue.
#include <windows.h>
#include <winbase.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;
ITaskScheduler *pITS;
///////////////////////////////////////////////////////////////////
// Call CoInitialize to initialize the COM library and then
// call CoCreateInstance to get the Task Scheduler object.
///////////////////////////////////////////////////////////////////
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);
pITS->Release();
if (FAILED(hr))
{
wprintf(L"Failed calling ITaskScheduler::Activate: ");
wprintf(L"error = 0x%x\n",hr);
CoUninitialize();
return 1;
}
///////////////////////////////////////////////////////////////////
// Call ITask::TriggerCount to retrieve the number of triggers
// associated with the task.
///////////////////////////////////////////////////////////////////
WORD plTriggerCount;
hr = pITask->GetTriggerCount (&plTriggerCount);
if (FAILED(hr))
{
wprintf(L"Failed calling ITask::GetTriggerCount: ");
wprintf(L"error = 0x%x\n",hr);
pTask->Release();
CoUninitialize();
return 1;
}
///////////////////////////////////////////////////////////////////
// Display the trigger stings, calling ITask::GetTriggerString for
// each trigger associated with the task.
///////////////////////////////////////////////////////////////////
wprintf(L"There are %i triggers with Test Task.\n",plTriggerCount);
wprintf(L"They are:\n");
WORD CurrentTrigger=0;
LPWSTR ppwszTrigger;
for (CurrentTrigger=0; CurrentTrigger<plTriggerCount; CurrentTrigger++)
{
pITask->GetTriggerString (CurrentTrigger,
&ppwszTrigger);
if (FAILED(hr))
{
wprintf(L"Failed calling ITask::GetTriggerString: ");
wprintf(L"error = 0x%x\n",hr);
pTask->Release();
CoUninitialize();
return 1;
}
wprintf(L"%i) %s\n",CurrentTrigger+1, ppwszTrigger);
}
///////////////////////////////////////////////////////////////////
// Release resources.
///////////////////////////////////////////////////////////////////
CoTaskMemFree(ppwszTrigger);
pITask->Release();
CoUninitialize();
return 0;
}
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