Why isn't a base class function visible?

[RobR]

Greetings!

I have the following code:

Base class header file:

class ADODIRECT_API CADODirectRecordset : public CADORecordset
{
public:
	long			GetLastID(const CCOMString& sequenceName);
}

Derived class header file:

class _OPERATIONSPLANNERSET_CLASS_EXPORT COperationsTaskSet :
	public CADODirectRecordset
{
public:
	long GetLastID();
}

Derived class implementation:

long COperationsTaskSet::GetLastID()
{
	return GetLastID(_T("operations_task_id_seq"));
}

When I compile this, my compiler complains that COperationsTaskSet::GetLastID() does not accept 1 argument. I had expected that it would see the one-argument version of GetLastID() defined in the base class. Why doesn't it?

If I qualify the function name with the base class name, it works:

long COperationsTaskSet::GetLastID()
{
	return CADODirectRecordset::GetLastID(_T("operations_task_id_seq"));
}

I'm sure I learned about this many years ago, and forgot it. Thank you for refreshing my memory.

RobR