Question: How do you use the Exec() function to run another executable program out of your C++ application? The help files have syntax on this, but I need someone to

Question: Is there any way to see/select/query referential constraints on tables? I have some constraints on a table that I did not create, and I want to see what rules

Question: Using VCafe 2.8 in a Win95 enviornment, I’m trying to spawn a local executable during the runtime of a Java application. I’ve tried using: Process p = Runtime.getRuntime().exec(strCmd); but

Question: Could you tell me what the proper syntax is for the sscanf function, and what return/error codes exist. This was for a Sparc-compiled program. Answer: Though newer programmers seem

The results of deleting an object more than once are undefined. However, if code modifications are impossible (when a third party code is used, for example), a temporary workaround to

You can use both — and ++ as prefix and postfix operators. When applied to primitives such as int or char, they are indistinguishable in terms of efficiency. When applied

An enumerated type is simply a list of constants, each of which has a unique value. An Enum can improve the readability of your code by allowing you to declare

Arrays can reduce the amount of code you must write to perform an operation, especially when used with a loop. By using the same array element in multiple places in

Due to a minor bug, the Internet Transfer Control cannot use the username and password properties if they are set before the URL property. Because of this, you should always

Enter this code in a BAS module to let users move a window without a title bar: Declare Function ReleaseCapture Lib “user32” () As LongDeclare Function SendMessage Lib “user32” _

Hungarian notation and similar naming schemes tell you at a glance the data type of any variable in your code. You know that the variable intCounter is an integer, and

The default type for missing declarations like the following is int: const k =0; //’int’ type deduced; deprecatedstatic j =5; //ditto Though still supported by the C++ standard, this convention

The access specification of a public virtual member function defined in a base class, can be changed in a derived class: class Base {public: virtual void Say() { cout

Many objects of various kinds share a similar characterization: they have to be acquired by means of initialization prior to their usage, then they can be used, and finally –

Question: I am having problems creating one particular ActiveX object using ASP. Previously I used WinCGI, and could create the desired object without any trouble. Trying to create the same

Question: When I start my PC, the first thing on the screen (after the virus scan)is Internet Explorer. Then I get a navagation cancelled box. How do I stop IE

Question: I have formatted my machine, which does not have any operating system. I used DOS 6.22 to boot the system and was planning to install Win 95. But my

Question: Can you pass an array directly into a cookie file, or do you have to convert it to a string first? If you have to convert it to a

Question: I want to copy some text in an HTML page to the clipboard when a button is clicked. Is there a method to do this in an onClick event?

Question: What would happen if I removed the basic NetBeui protocol on an NT network and enabled TCP/IP as the lone and default one? Is that advisable? Answer: As with

Question: Some of my users cannot logon to a new WinNT 4.0 server with the standard account I have created for them. Some users get the logon dialog box that

Question: How can I insert text in a textarea at the current cursor position ? I am able to insert it at the end, for example: textarea.value = textarea.value +

Question: Is there any way to create a directory from within a PowerBuilder application without using the RUN command? Or is there a way to get the RUN command to

Question: I have been told that the NT 4.0 Resource Kit has a tool to turn an executable, such as one created in VB5, into a service running on NT

Question: Do you know of any way to find out the connection speed of a site’s visitor and then stream videos at the appropriate bitrate? I’m thinking specifically of RealPlayer.

You can use the Printer’s scale properties to set margins. Set the properties so the position (0, 0) is mapped to where you want the margins. This code makes the

You can make a form always remain above others, even when it does not have focus. Use this code in a BAS module: #If Win16 Then Declare Sub SetWindowPos Lib

You can use static variables to perform one-time initialization: Private Sub GetValue()Static initialized As Boolean If Not initialized Then ‘ Perform one-time initialization. : initialized = True End If ‘

If you want to convert an array into a sting, the join method is your best bet. This method takes one parameter and uses it as the separator between each

It is much faster to use explicit object data types instead of generic ones. In this test that simply sets an object’s public variable, the generic object takes more than