Creating a Viewport

Call the IDirect3D3::CreateViewport method to create the viewport object. For this you need a valid LPDIRECT3D3 pointer, shown in the following example as lpD3D2:

    HRESULT hr;
 
    hr = lpD3D3->CreateViewport(&lpD3DViewport3, NULL);
 
    if(FAILED(hr))
        return hr;
    else
    {
      // Add the viewport to a device.
    }
 

After creating a viewport, you can add it to an existing device. For more information, see Adding a Viewport to a Device.