_MediaCaptureVideoPreview 1309 modules/videoio/src/cap_msmf.cpp         GET_WRL_OBJ_FROM_REF(_MediaCaptureVideoPreview, imedPrevCap, DEREF_AGILE_WRL_OBJ(ig_pMedCapSource), hr)
_MediaCaptureVideoPreview 1333 modules/videoio/src/cap_msmf.cpp     GET_WRL_OBJ_FROM_REF(_MediaCaptureVideoPreview, imedPrevCap, DEREF_AGILE_WRL_OBJ(ig_pMedCapSource), hr)