CComControl::ControlQueryInterface
Retrieves a pointer to the requested interface.
virtual HRESULT ControlQueryInterface(
const IID& iid,
void** ppv
);
Параметры
iid
[in] The GUID of the interface being requested.ppv
[out] A pointer to the interface pointer identified by iid, or NULL if the interface is not found.
Заметки
Only handles interfaces in the COM map table.
Пример
// Retrieve the control's IOleObject interface. Note interface
// is automatically released when pOleObject goes out of scope
CComPtr<IOleObject> pOleObject;
ControlQueryInterface(IID_IOleObject, (void**)&pOleObject);
Требования
Header: atlctl.h