> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# XTaskQueueDuplicateHandle

> XTaskQueueDuplicateHandle

# XTaskQueueDuplicateHandle

Duplica um objeto XTaskQueueHandle.

## Sintaxe

```cpp theme={null}
HRESULT XTaskQueueDuplicateHandle(  
         XTaskQueueHandle queueHandle,  
         XTaskQueueHandle* duplicatedHandle  
)  
```

### Parâmetros

*queueHandle*   \_In\_\
Tipo: XTaskQueueHandle

A fila a ser referenciada.

*duplicatedHandle*   \_Out\_\
Tipo: XTaskQueueHandle\*

O identificador de fila duplicado.

### Valor retornado

Tipo: HRESULT

Código de sucesso ou de erro HRESULT.

## Comentários

Use [XTaskQueueCloseHandle](/pt-BR/reference/system/xtaskqueue/functions/xtaskqueueclosehandle) para fechar o objeto **XTaskQueueHandle**.

O exemplo a seguir demonstra como duplicar um identificador de fila de tarefas. Se você tiver um trabalho de longa duração, talvez queira duplicar o identificador da fila de tarefas durante esse trabalho. Isso impede que qualquer pessoa que chame a função [XTaskQueueCloseHandle](/pt-BR/reference/system/xtaskqueue/functions/xtaskqueueclosehandle) feche a fila enquanto você ainda precisa dela.

```cpp theme={null}
void DuplicatingTaskQueueHandle()
{
    XTaskQueueHandle queue;

    HRESULT hr = XTaskQueueCreate(
        XTaskQueueDispatchMode::Manual, 
        XTaskQueueDispatchMode::Manual, 
        &queue);

    if (FAILED(hr))
    {
        printf("failed to create task queue: 0x%x\r\n", hr);
        return;
    }

    class LongRunningWork
    {
    public:
        HRESULT Initialize(XTaskQueueHandle queue)
        {
            return XTaskQueueDuplicateHandle(queue, &m_queue);
        }
        
        ~LongRunningWork()
        {
            if (m_queue != nullptr)
            {
                XTaskQueueCloseHandle(m_queue);
            }
        }

    private:
        XTaskQueueHandle m_queue = nullptr;
    };

    LongRunningWork work;
    hr = work.Initialize(queue);
    
    // Note that LongRunningWork's queue handle is still valid.
    XTaskQueueCloseHandle(queue);

    if (FAILED(hr))
    {
        printf("Failed to duplicate queue handle: 0x%x\r\n", hr);
    }
}
```

## Requisitos

**Cabeçalho:** XTaskQueue.h

**Biblioteca:** xgameruntime.lib

**Plataformas compatíveis:** Windows, consoles da família XBOX One e consoles XBOX Series

## Confira também

[Membros de XTaskQueue](/pt-BR/reference/system/xtaskqueue/xtaskqueue_members)\
[Modelo de programação assíncrona](/pt-BR/build/core-features/common/async/async-programming-model)\
[Design da fila de tarefas assíncrona](/pt-BR/build/core-features/common/async/async-task-queue-design)


## Related topics

- [XTaskQueueDuplicateHandle](/reference/system/xtaskqueue/functions/xtaskqueueduplicatehandle.md)
- [XblGetAsyncQueue](/reference/live/xsapi-c/xbox_live_global_c/functions/xblgetasyncqueue.md)
- [XTaskQueue](/reference/system/xtaskqueue/xtaskqueue_members.md)