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Variable Returning Matches in a Select Query

Question: What is the variable that returns the number of matches in a select query? I thought I’d seen a reference to a variable (something like “_COUNT”) but now I

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Place JavaScript In Separate Files

Question: I want to create a library of generic JavaScript functions. Is it possible to write different functions in different files, and use the functions within other files by “including”

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Break Out of Those Frames

So you’ve designed your page just perfectly so all the content screams at the user to be noticed. Unfortunately, sites that link to your site have decided to place their

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AWT Thread Interaction

Question: I have two threads in an application. Thread A displays a form andallows the user to interact with it, thread B executes a loop whichcontinually retrieves data and updates

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Textfield Alignment

Question: How do I right align numbers in a textfield? Answer: This is yet another example of why the Swing classes should be used inlieu of the AWT classes. Swing

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Initializing A ResultSet

Question: I am building a prototype but am trying to make the code as reuseableas possible. To test the prototype, I need to simulate a ResultSetbeing returned from a database.

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C-Style Function Pointers

Question: While trying to port some C code to a C++ implementation, I ran into this problem. The module this came out of was designed to “automate data handling used

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Languages Used for Windows Programs

Question: I need to know what languages are used in the implementation and programming of Windows 95 et al. (Windows 98, Windows NT, and Windows 2000). Any help or referrals

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Display an Alert After the Page Loads

Question: How do I make an alert box pop up 10 seconds after the page loads? Answer: You can display an alert a certain length of time after the page

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Outlook Client Locks Up

Question: We have someone using PPTP to connect to our Exchange server. He is able to use the intranet without problems. He can even get into Outlook, but the troubles

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New Versus Malloc()

Question: Why is it necessary to typecast the return value of malloc() but not for the new operator? This question has been asked of many C++ experts but no one

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Removing cc:Mail Connector

Question: I need to remove the cc:Mail connector. How do I do this? Answer: Though it would seem intuitive to select the connector and click Delete but that actually won’t

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Duplicate Holidays on Outlook Calendar

Question: Because my work and home computers were accidentally set to different time zones when I imported Calendar info from one system to the other, I ended up with multiple

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Dynamic Views Using the System Date

Question: I have a user who wants me to create a dynamic search view where the data retrieved is effective within the last six months using the system date. Is

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Class Scoped Constants

Question: Is there a better way to scope constant values within a class other than by using “enum”? class Foo {public: enum { valueOne = 1, valueTwo = 2 }

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Caching JavaScript Files

Question: If I include a .js file using the src attribute of a script tag and then I need to change the content of the .js file (perhaps to correct

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Dynamic Report Generation

Question: How can I develop a report such that the user can choose what fields of a (single) table should be retrieved and printed? For example, a customer table with

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Remote Mailbox Access Takes Too Long

Question: I am running Microsoft Exchange 5.5 Server with Microsoft Outlook 2000 as client software. For my remote users, they are using the offline folders. Every time a user dials

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Detecting Alphabetic Data

Question: How do you detect alphabetic data being entered into an integer field from a cin statement? Answer: The easiest way to do that is by having cin read a

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Storing Strings Within an Application

Question: I have a series of strings that I wish to store in the program directory. I want to save them all to the same file and be able to

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Securing Images on Your Site

Question: Is it possible to keep someone from downloading an image from my Web site? Answer: It’s certainly possible to secure some of the files on your Web site. The

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Informix ODBC Drivers 3.31

Question: I am currently running Informix Dynamic Server 2000 version 9.20 TC1 on an NT server, Service Pack 6a. I have existing Visual Basic 5 applications that are using ADO

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DATETIME Type Conversion

Question: I need some help with the DATETIME data type conversion. I have an Informix database running in a UNIX environment and I need to insert the system hour into

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Preventing Users from Deleting E-mail

Question: I would like to prevent users from deleting e-mail in Outlook 97 on a Windows 95 or Windows NT workstation in combination with Exchange Server on an NT server.

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Possibility of Decompiling an EXE File?

Question: How can I get the source code from EXE files? Does it matter if they are read-only? Answer: This question is asked very frequently. However, the answer is always

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Explaining the Modulus Operator

Question: What does the modulus (%) operator do? Answer: The modulus operator returns the remainder of a division operation. For example, 5%2 equals 1 because dividing 5 by 2 gives

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Deleting/Expanding a Column

Question: What is the proper method(s) to delete a column from a table or expand the size of a column in a table? Adding is easy. Deleting and changing obviously

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Pointers to Class Member Functions

Question: I’m trying to write a program that has a pointer to a private member function of a class. A public member function calls some of the private functions by