MAKE_PROPERTY_STRING  458 modules/videoio/src/cap_msmf.hpp #define MAKE_PROPERTY_STRING(Type, PropName, PropValue)
MAKE_PROPERTY_STRING  550 modules/videoio/src/cap_msmf.hpp #define MAKE_PROPERTY_STRING(Type, PropName, PropValue) STDMETHODIMP get_##PropName(Type* pVal) { if (pVal) { return ::WindowsDuplicateString(PropValue.Get(), pVal); } else { return E_INVALIDARG; } }\