c++ - 调整窗口大小后交换渲染缓冲区会导致问题

Question

我正在尝试处理窗口调整大小消息 WM_SIZE。当我收到它时:

LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_SIZE:
    {
        int nWidth = LOWORD(lParam);
        int nHeight = HIWORD(lParam);
        renderer->Resize(nWidth, nHeight);
        return 1;
        break;
    }
    case WM_DESTROY:
    {
        PostQuitMessage(0);
        return 0;
    } break;
    }

    return DefWindowProc(hWnd, message, wParam, lParam);
}

我使用新的高度和宽度参数重新创建渲染目标视口(viewport)并调整缓冲区大小:

void Renderer::Resize(int w, int h)
{
    m_devContext->OMSetRenderTargets(0, 0, 0);

    m_renderTargetView->Release();

    HRESULT hr;
    hr = m_swapchain->ResizeBuffers(1, w, h, DXGI_FORMAT_UNKNOWN, 0);

    ID3D11Texture2D* pBuffer;
    hr = m_swapchain->GetBuffer(0, __uuidof(ID3D11Texture2D),
        (void**)&pBuffer);

    hr = m_device->CreateRenderTargetView(pBuffer, NULL,
        &m_renderTargetView);

    pBuffer->Release();

    m_devContext->OMSetRenderTargets(1, &m_renderTargetView, NULL);

    // Set up the viewport.
    D3D11_VIEWPORT vp;
    vp.Width = w;
    vp.Height = h;
    m_devContext->RSSetViewports(1, &vp);

}

尽管如此，调整大小事件后呈现的第一帧会导致错误:

void Renderer::Render() const
{

    m_devContext->ClearRenderTargetView(m_renderTargetView, m_clearCol);
    HRESULT ret = m_swapchain->Present(0, 0); //triggered exception here, only the first frame after resize
}

Visual Studio 弹出错误是:

ApplicationName.exe has triggered an exception

.没有其他信息，也没有可捕获的异常。根据网络上的一些研究，我猜想这可能与某些未释放的资源或堆损坏有关。

有什么提示吗？我究竟做错了什么？

---

编辑:我错过了控制台输出。这是确认是堆损坏问题的消息:

HEAP: Free Heap block 44aa468 modified at 44aa4e8 after it was freed application.exe has triggered a breakpoint.

我遵循的文档来自这个 MSDN article .

Answer 1

不要返回 1，在 WM_SIZE 消息中使用此 return DefWindowProc(blah..)。完成调整大小指令后，Windows 需要自行处理