‘ Clear a bit in a value” NOTE: requires Power2()Function BitClear(ByVal value As Long, ByVal bit As Long) As Long ‘ simply AND with the negation of the bit mask

‘ Test the value of a bit” NOTE: requires Power2()Function BitTest(ByVal value As Long, ByVal bit As Long) As Boolean ‘ simply AND with the bit mask ‘ Range checking

It is sometimes useful to be able to obtain a complete list of the components in a container hierarchy. A getComponents() method is provided in the java.awt.Container class, but it

Pausing SQL Server prevents new users from logging in and gives you time to send a message to current users asking them to complete their work and log out before

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

In C, it is valid to assign integers to an enumerated type. For example: /*** valid in C but not C++ ***/enum Status {good, bad};void func(){ Status stat = 1;

Question: Is there a parameter that can be used within a radio button tag in an HTML form to set the default value for the radio group? Answer: The CHECKED

In SQL Server 6.5, this command specifies that a distributed transaction managed by Microsoft Distributed Transaction Coordinator (MS DTC) starts and the transaction_name specifies a user-defined transaction name that is

The java.text.DateFormat class and its java.util.SimpleDateFormat subclass are useful for formatting and parsing date and time values. For example, your application may allow a user to enter a date value

While there is no way to specifically disable the back button from within the browser, you can shortcut the navigation to another page. The trick is to catch the onbeforeunload

Question: How can I make a Shockwave Flash movie run over or under a DHTML DIV tag with text inside? I tried to use z-index but it doesn’t work well

Question: I am working with Microsoft DHTML and when I insert the content of a field in a DHTML document, I lose part of my message. For example, suppose I

To enumerate all network-visible SQL servers using SQL-DMO objects, create a new standard EXE project and add a reference to sqldmo.rll. This file can be found in BinnResources1033sqldmo.rll under the

Visual InterDev 6, Service Pack 3 lets you switch your HTML tags to uppercase or lowercase in a flash. For example, if you want uppercase tags, highlight the section of

Here’s a nice little function that retrieves a list of the available serial ports on your system. Note that this function uses Java’s Communications API, also known as javax.comm, which

Private Declare Function GetWindowLong Lib “user32” Alias “GetWindowLongA” _ (ByVal hWnd As Long, ByVal nIndex As Long) As LongPrivate Declare Function SetWindowLong Lib “user32” Alias “SetWindowLongA” _ (ByVal hWnd As

Private Declare Function GetWindowLong Lib “user32” Alias “GetWindowLongA” _ (ByVal hWnd As Long, ByVal nIndex As Long) As LongPrivate Declare Function SetWindowLong Lib “user32” Alias “SetWindowLongA” _ (ByVal hWnd As

Private Declare Function GetTempFileName Lib “Kernel32” Alias _ “GetTempFileNameA” (ByVal lpszPath As String, _ ByVal lpPrefixString As String, ByVal wUnique As Long, _ ByVal lpTempFileName As String) As LongPrivate Declare

Private Declare Sub CopyMemory Lib “Kernel32” Alias “RtlMoveMemory” (dest As _ Any, Source As Any, ByVal bytes As Long)’ Returns an object given its pointer’ This function reverses the effect

DEFER is a relatively obscure attribute of the SCRIPT element, but if you want to enhance performance when authoring scripts, you can use it to indicate to Internet Explorer 4

Here’s an example of a better way to pass arguments to main() methods of Java classes than using String[] args. First, pass two named parameters, user and level, that come

A friend of a class template can be a function template or class template, a specialization of a function template or class template, or an ordinary (non-template) function or class.