使用 com 对象删除计划任务

Question

我尝试了以下删除计划任务的代码：

bool deleteTask(std::wstring taskName)
    {
    if (FAILED(CoInitialize(nullptr))) {
        return false;
    }

    ITaskScheduler *pITS;
    if (FAILED(CoCreateInstance(CLSID_CTaskScheduler, nullptr, CLSCTX_INPROC_SERVER, IID_ITaskScheduler, (void **)&pITS))) {
        CoUninitialize();
        return false;
    }

    HRESULT hr = pITS->Delete(taskName.c_str());
    pITS->Release();
    CoUninitialize();

    if (FAILED(hr)) {
        if (hr == HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND)) {
            wprintf(L"ERROR_FILE_NOT_FOUND");
        }
        return false;
    }
    return true;
}

执行deleteTask(L"exampletask");方法时pITS->DeletereturnsERROR_FILE_NOT_FOUND即使执行schtasks.exe /Query /TN exampletaskreturns现有任务
我也用admin/system/service的权限试过这段代码，none成功找到并删除任务

是否缺少某些参数，或者应该调用的方法？
谢谢！

Answer 1

正如@IInspectable 所建议的，解决方案是使用 Task Scheduler 2.0 Interfaces，例如ITaskService 而不是 ITaskScheduler，ITaskFolder->DeleteTask 而不是 ITaskScheduler->Delete。

bool deleteTask(std::wstring taskName)
{
    if (FAILED(CoInitialize(nullptr))) {
        return false;
    }

    ITaskService *pITS;
    if (FAILED(CoCreateInstance(CLSID_TaskScheduler, nullptr, CLSCTX_INPROC_SERVER, IID_ITaskService, (void **)&pITS))) {
        CoUninitialize();
        return false;
    }

    if (FAILED(pITS->Connect(_variant_t(), _variant_t(), _variant_t(), _variant_t()))) {
        pITS->Release();
        CoUninitialize();
        return false;
    }

    ITaskFolder *pITF;
    if (FAILED(pITS->GetFolder(_bstr_t(L"\"), &pITF))) {
        pITS->Release();
        CoUninitialize();
        return false;
    }

    pITS->Release();

    if (FAILED(pITF->DeleteTask(_bstr_t(taskName.c_str()), 0))) {
        pITF->Release();
        CoUninitialize();
        return false;
    }

    pITF->Release();

    CoUninitialize();

    return true;
}

使用 com 对象删除计划任务

Delete a scheduled task using com objects

c++

winapi

comobject