referencing a guid?

[BugCatcher]

In the below code I need to reference the guid IID_ID2D1Factory. I'm using the coinvoke macro method. The second argument wants a REFIID type? I don't have a clue how to do that. Any help? Thx.   



invoke   D2D1CreateFactory,D2D1_DEBUG_LEVEL_NONE,REFIID(?),D2D1_FACTORY_TYPE_SINGLE_THREADED,addr   g_pD2D1Factory

;//+-----------------------------------------------------------------------------
;//
;//  Interface:
;//      ID2D1Factory
;//
;//  Synopsis:
;//      The root factory interface for all of D2D's objects.
;//
;//------------------------------------------------------------------------------
;06152247-6f50-465a-9245-118bfd3b6007"); Interface IID's
IID_ID2D1Factory textequ <{006152247h,06f50h,0465ah,{092h,045h,011h,08bh,0fdh,03bh,060h,007h}}>

_vtID2D1Factory MACRO CastName:REQ
   _vtIUnknown CastName
   &CastName&_ReloadSystemMetrics         comethod1   ?
   &CastName&_GetDesktopDpi            comethod3   ?
   &CastName&_CreateRectangleGeometry      comethod3   ?
   &CastName&_CreateRoundedRectangleGeometry   comethod3   ?
   &CastName&_CreateEllipseGeometry         comethod3   ?
   &CastName&_CreateGeometryGroup         comethod6   ?
   &CastName&_CreateTransformedGeometry      comethod4   ?
   &CastName&_CreatePathGeometry         comethod2   ?
   &CastName&_CreateStrokeStyle            comethod6   ?
   &CastName&_CreateDrawingStateBlock      comethod4   ?
   &CastName&_CreateWicBitmapRenderTarget   comethod4   ?
   &CastName&_CreateHwndRenderTarget      comethod4   ?
   &CastName&_CreateDxgiSurfaceRenderTarget   comethod4   ?
   &CastName&_CreateDCRenderTarget         comethod3   ?
ENDM

ID2D1Factory struct
   _vtID2D1Factory ID2D1Factory
ID2D1Factory ends

   LPD2D1FACTORY   typedef PTR ID2D1Factory
   PD2D1FACTORY           typedef PTR ID2D1Factory

[Siekmanski]

Try this macro:

GUID_ADDR MACRO guid_text:REQ
   LOCAL guid_data
   .data
    guid_data GUID guid_text
   .code
   EXITM <addr (guid_data)>
ENDM
IID_ID2D1Factory textequ <{006152247h,06f50h,0465ah,{092h,045h,011h,08bh,0fdh,03bh,060h,007h}}>

invoke   D2D1CreateFactory,D2D1_DEBUG_LEVEL_NONE,GUID_ADDR(IID_ID2D1Factory),D2D1_FACTORY_TYPE_SINGLE_THREADED,addr   g_pD2D1Factory

[BugCatcher]

Once again thx Siekmanski for your dirctx expertize! Meow!