Can ID2D1HwndRenderTarget use Direct2D effects ? RRS feed

  • Question

  • It seems that  Direct2D effects  is only available in ID2D1DeviceContext, but there is a need for me to use effects in HwndRenderTarget.  Now the question is: can ID2D1DeviceContext and HwndRenderTarget interoperate between each other?

    My test shows negative.  (0x88990015, D2DERR_WRONG_RESOURCE_DOMAIN, The resource used was created by a render target in a different resource domain)

    1. create ID2D1DeviceContext

    hr = m_pDirect2dFactory->CreateDevice(dxgiDevice, &d2dDevice);

    hr = d2dDevice->CreateDeviceContext(

    2. create HwndRenderTarget

    hr = m_pDirect2dFactory->CreateHwndRenderTarget(
      D2D1::HwndRenderTargetProperties(m_hwnd, pixelSize),

    3. create bitmaps in HwndRenderTarget and ID2D1DeviceContext, respectively:

    ID2D1Bitmap1* pD2dBitmap;

    hr = m_d2dContext->CreateBitmap(pixelSize, nullptr, 4 * pixelSize.width, &bitPropertiesTgt, &pD2dBitmap);

    ID2D1Bitmap* pHwndRTBitmap;

    hr = m_pRenderTarget->CreateBitmap(pixelSize, bitmapProperties2, &pHwndRTBitmap);

    4. assume the bitmaps are filled with colors and make the below calls:

     hr = m_d2dContext->EndDraw();

    If they really cannot interoperate, the ms docs below is confusing to me:


    If the currently selected target is a bitmap rather than a command list, the application can gain access to the initial bitmaps created by using one of the following methods:
    • CreateHwndRenderTarget
    • CreateDxgiSurfaceRenderTarget
    • CreateWicBitmapRenderTarget
    • CreateDCRenderTarget
    • CreateCompatibleRenderTarget

    Thursday, September 20, 2018 3:42 AM