February 19, 1999

Question: I want to develop a free e-mail system similar to what Hotmail and Yahoo offer. I was wondering if you could give me some ideas on how to approach

Question: How can I determine if is down or up while dragging an object within my app? The goal is to detect if something is being copied or moved. Answer:

When creating a query using the Visual InterDev 6 Recordset Design-Time control (DTC) against a Microsoft Access 97 database, you may get an error 80020009. The problem is that the

During reallocation, a container re-constructs its elements in a new memory location and destroys the original elements by invoking their destructor. Since the destructor of auto_ptr deletes its bound object,

In Java, static variables may be used as flags to maintain state between different instantiations of a class (see Tip: “Using Static Variables to Store State Across Instantiations”). However, the