When an argument of a function is not used anymore in the function body (in an upgrade, for example), it needn’t be removed from the function’s argument list. It can

Whenever your class contains pointers, references, or handles, you need to define a copy constructor and assignment operator. Otherwise, the compiler-generated copy constructor and assignment operator will result in aliasing,

If you’ve been using the standard string class and you have to internationalize your software, you don’t have to give up the significant advantages class string offers: you can simply

Static variables (not to be confused with static class members) have the qualities of both global and local variables: they are initialized by default to binary zeroes (unless explicitly initialized

Question: Whenever I try to connect to a Web Project that I have built (mostly with the Visual InterDev wizards) and I try to run the page in a browser

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Question: I have MDAC 1.5 on my Windows 95 box running PWS 4.0. I get ASP ‘0115’ when trying to run any of the ASP scripts, even the samples downloaded

Question: I have a successful ASP application that returns data to an IE4 browser and requests that the browser display the data as an Excel spreadsheet. When I save the

Question: Microsoft currently has a VB5 extension to allow programming of the WinCE handheld PCs, but not for the Palm PCs. Is Microsoft planning a version of WinCE VB for

Question: My question involves SystemTray controls for WinCE 2.0. I am familiar with the ActiveX controls that can use the SystemTray in Win95. However, I am not sure how to

Question: I would like to build two toolbars on the screen. The first is one that goes along the top of the screen that is associated with the menu in

Question: I’m trying to format the output of the select query that I have done. The fields in the database are too large to parse easily, so they need to

Question: I’d like to know if there’s any royaltyto be paid when I distribute the applications I did in PowerBuilder. Answer: No, you can distribute PB client applications royalty-free. You

Question: How can I use the CHOOSECOLOR WIN32 API with Powerbuilder? Answer: Create a custom user object and declare the following local structure:long lstructsizeulong hwndownerulong hinstancelong rgbresultblob lpcustcolorslong flagslong lcustdatalong

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Question: I am trying to back up a database to a disk backup device over a network. When I attempt my backup, I encounter an error 5 ? Access denied.

Question: Is there any way I can use a single quote in a string and use that string as a value in a text field? Is there an escape character,

Question: I need to run DBCC checks on my databases every week, but I was advised not to use the databasewizards in MS SQL 6.5. Can DBCCs be setup to

A class member declared static is a single instance of that member shared by all instances of this class (that’s why it is sometimes termed a class variable, as opposed

Operator new allocates memory from the heap, on which an object is constructed. Standard C++ also supports placement new operator, which constructs an object on a pre-allocated buffer. This is

Choosing a short name for a namespace can eventually lead to a name clash. On the other hand, very long namespaces are not easy to use. For that purpose, namespace

Identifiers starting with __ (double underscore) are reserved for C/C++ implementations and standard libraries. Furthermore, C++ programs are transformed by the compiler (inline substitution, addition of this as an argument

Before implementing containers such list, vector, queue, stack etc., by yourself, you can cut costs and software shipment time significantly by using The Standard Template Library, or STL. STL defines

Most VB4 programmers know they can access a form’s control collection using a For Each loop. Many, however, are not aware that individual control arrays are actually collections. This knowledge

Often users print from applications that support a font the printer doesn’t. An error occurs if an application uses a statement such as Printer.Print SomethingToPrint following a Printer.FontName = FontName

Just about every VB developer uses the Move (Screen.Width – Width) 2, (Screen.Height – Height) 2 method to center the forms on screen. However, when the user has the Windows

When you want to set a flag to True or False, depending on the results of a comparison, you don’t need to use an If statement like this: If x

Question: I am trying to process a table and its rows and cells on an HTML page. I have given the Table, TR and TD elements IDs. I am trying

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According to the C++ standard, the following line is illegal: char *s = “hello world”; //illegal Though still supported by many compilers, it’s deprecated and should be avoided. The reason