I have a boss-extrude feature and I need to select a specific face of the feature. I am able to enumerate the feature's faces and I have the face I need in an IFace2 pointer. I tried the following to select the face but it doesn't work:

ISelectionMgr* selectionManager = NULL;

modelDoc->get_ISelectionManager(&selectionManager);

ISelectData* selectData = NULL;

selectionManager->CreateSelectData(&selectData);

VARIANT_BOOL retVal = 0;

SWEntity* entity = (SWEntity*)face;

entity->Select4(VARIANT_FALSE, selectData, &retVal);

Can anyone comment on whether this should work or if there is a better way to select the face using the C++ API.

Thanks,

Andrew