Both C and C++ allow you to return by value aggregates, e.g., structs and unions, from a function. However, the runtime overhead of returning large objects by value can be

In many applications, you need a generic class that invokes callback functions regardless of their class type. For example, an even-driven system that needs to call a member function of

Here’s a common error: you define a class-internal type, say an enum or typedef, and then try to use it as the return type of that class’s member function: class

The standard functions isalpha(), isdigit(), isprint() etc., defined in the standard header or often fail to produce the right results because they assume that their arguments are of type ‘unsigned

The .* and ->* operators enable you to call a member function without having to know the function’s name. Remember, however, that when using these operators, you have to parenthesize

This is a useful tip if you are using SQL Server as your database and Accessas your front-end application. Use the following code to dynamically change theAccess passthrough query definition,

Question: I have an Exchange 5.5 installation on a Windows 2000 box with SP3, and I want to move approximately 1,500 mailboxes there from am Exchange 5.5 SP2 box on

Question: My users are able to go to File > Open > Other User’s Folder and view anyone’s mail. What am I missing? I thought this was a simple setting

Question: I have been asked to write a script that will send an e-mail to a distribution list if a new item is placed in a public folder. I have

Question: I have one user who is getting an error when he has Outlook open. He’s unable to update public/free busy data. He’s the only user at that location who

Question: We currently have three Exchange 5.5 SP3 servers in California. We’re going to add one server in London and use x.400 connectors, but we’re not sure what the best

Here’s the code to simulate a simple NNTP server that provides offline news reader support to WebReader. Hope you enjoy it. import java.util.*; import java.io.*; import java.net.*; class nntpServer {

Two types of initialization blocks (anonymous blocks) can be used to initialize class or instance variables in Java. To intialize instance variables, {} block can be used; this block functions

Download this tool and convert any Java API downloaded from the java.sun.com into Windows Help format, the advantage of this is that you can use the inbuilt Search facility that

In lot of places, I have seen developers doing a ‘new’ to instantiate a user-defined data type (Objects) and then later in the source code checking whether this new Object

Ever wonder how to get the MSFlexGrid to have sorting behavior common inmany Windows applications? That is to say when you double-click on acolumns header it sorts ascending. Double-click again

Decode is a very useful and handy function for Oracle queries. Itreplaces the complex If-Then-Else logic, which is used to display different things based on different values in a column.

VB6 Deployment and Packaging Wizard’s resulting setup.exe has a commandline switch that allows for a silent install. This feature is virtuallyundocumented except in the source code for Setup1.exe. The default

Question: How can I view Informix database tables via the SQL Server 7 Enterprise Manager? Answer: I’m not a SQL Server user, so I can’t address your SQL Server specific

Question: I’m developing some applications with servlets. I’ve been declaring static variables to preserve state, but when two instances of the servlet run at the same time, the second instance

Question: Is it possible in Java to increase an application’s stack size? Answer: The stack size of an application can be set at run time depending on the virtual machine

Question: I want to connect to an Access DB on a server from a client using a VB app. I assume I would have to make a connection to the

Question: In my Web clipping app, I have a form like this: When I submit the form the query string looks like this: myserver.com/results.cgi?var1=xyz&var2&var3=abc The problem is if a form

Question: I have a client that used to be an Oracle programmer years ago who tells me I’m designing his SQL 7.0 database all wrong because I’m using joins in

Question: I have a bunch of words in a listbox that I want to spell check(with Microsoft Word 2000 maybe?). I would like the routine to delete any word in

Question: We have co-located a Windows NT Exchange 5.5 SP3 server with our ISP and we have about 14 Outlook clients running from our office. All of the Outlook clients

Question: How can I access an ASP page through VB? Answer: You can use the Internet Transfer control to connect to a web page and retrieve data from Visual Basic.

Question: Consider the code: template class TestClass {public: T testFunc(T*);};template TestClass::testFunc(T* p1){ return sadfs; //actually, here I could //write anything I want} The problem is that VC++6 compiler doesn’t track

Question: What does the ‘const’ in the following funciton prototype mean? class A{public: void fn (int a ) const;} Answer: The const after a member function’s parameter list indicates that