Pointer-based operations are less frequently needed than they might seem. For instance, examine this class declaration: class PointerMisuse{private: CDC * m_pDeviceContext;public: PointerMisuse(); ~PointerMisuse();};PointerMisuse::PointerMisuse(){ m_pDeviceContext = new CDC;}PointerMisuse::~PointerMisuse(){ delete m_pDeviceContext;} Even
When concatenating a SQL statement such as INSERT, you may have trouble if your field value contains an apostrophe (‘) such as in “Commedia Dell’Arte.” SQL thinks the apostrophe is
CreateInstance creates a COM object that will have context only if its component is registered with Microsoft Transaction Server (MTS). When you create an object using CreateInstance, the new object’s
Although the Visual InterDev 6 Grid design-time control (DTC) is handy for putting tables of data on a Web page, the default format has some unpleasant aspects. For example, the
When creating remote objects for use with Java’s Remote Method Invocation (RMI), you’ll often extend java.rmi.server.UnicastRemoteObject. When you do extend UnicastRemoteObject, it becomes easy for the remote methods to determine
Use sp_procoption to execute a stored procedure automatically at the time of starting SQL server. The stored procedure that needs to be executed should be created in the master database
You should use the Cascading Style Sheets (CSS) visibility property to hide and show absolutely positioned elements. There is no need to use the CSS display property in the case
Many applications use an audible “beep” sound to signal that an error has occurred or to get the user’s attention for some reason. For example, a user interface that allows
There are various forms of friend declarations within a class template: a non-template friend, a specialized template friend, and a class template friend. A function template can also be declared