https://github.com/apitrace/dxsdk/blob/master/Include/d2d1_2.h
interface ID2D1Factory2 : public ID2D1Factory1
{ STDMETHOD(CreateDevice)(
_In_ IDXGIDevice *dxgiDevice,
_COM_Outptr_ ID2D1Device1 **d2dDevice1
) PURE;

using ID2D1Factory1::CreateDevice;
}; // interface ID2D1Factory2

How i understood ID2D1Factory2 using all STDMETHOD from ID2D1Factory1
But how ?
I must apply STDMETHOD(CreateDevice in end of list or
after QueryInterface,AddRef,Release,CreateDevice ?

But in second CreateDevice
https://github.com/apitrace/dxsdk/blob/master/Include/d2d1_1.h
interface DX_DECLARE_INTERFACE("bb12d362-daee-4b9a-aa1d-14ba401cfa1f") ID2D1Factory1 : public ID2D1Factory
{ STDMETHOD(CreateDevice)(
_In_ IDXGIDevice *dxgiDevice,
_COM_Outptr_ ID2D1Device **d2dDevice
)

Now i get
interface ID2D1Factory,\
QueryInterface,AddRef,Release,ReloadSystemMetrics,GetDesktopDpi,\
CreateRectangleGeometry,CreateRoundedRectangleGeometry,CreateEllipseGeometry,\
CreateGeometryGroup,CreateTransformedGeometry,CreatePathGeometry,CreateStrokeStyle,\
CreateDrawingStateBlock,CreateWicBitmapRenderTarget,CreateHwndRenderTarget,\
CreateDxgiSurfaceRenderTarget,CreateDCRenderTarget

Extended COM interfaces add functions to the end of the vector table. They are in effect also an object of the same type of parent interface. So, a function requiring an object of type ID2D1Factory can also operate on ID2D1Factory1 or ID2D1Factory2 object in general.


interface ID2D1Factory2,{IUnknown functions ...},{ID2D1Factory functions ...},{ID2D1Factory1 functions ...},{ID2D1Factory2 functions ...}

Thanks.
Now i get Direct2D to DX12. And draw text
https://www.youtube.com/watch?v=SRbeKBOpM0A&feature=youtu.be