Question: I am using a simple grid with names and numbers, and I have the fields set as required in the database. I would like to know how to trap

Question: I am creating numerous threads on-the-fly in Delphi 2.0. I create them suspended. The question is: How do I make the threads go away? I’ve tried Free, Terminate… nothing

Question: I’m using Delphi to do a client-server application in which all the lines I get from a socket I send to a TMemo in my form. I want that

Question: Do you know how to create a flat, non-3D combo box with only a thin black border? Setting CTL3D to False doesn’t seem to have an effect on the

Question: I want to be able to filter records in a table based on criteria in, say, three combo boxes on a form. Answer: If you have indexes on those

Question: How do I re-size the buttons, etc. on my forms when the resolution changes? If I create something in Delphi at a high resolution and run it on a

Question: I’m using the Winexec command and trying to use a string as the argument, but Winexec takes only a Pchar as its argument. I can’t figure out how to

Question: How can I build a program that I can run on a computer that has no Borland Database Engine?Or how can I make a program to install BDE? Answer:

Question: What is the difference between cout

Question: What is the C++ equivalent to _getch()? I need to have program control immediately after any keypress in a DOS-based program. Answer: Unfortunately there is no specification in the

Question: How can I turn a text string into an integer? Answer: You can convert a string to an integer by using the atoi function. For example:void foo (){int i

Question: What is the best way to manipulate strings in C++? Answer: Here is an example.#include void foo (char *instring){ // Declare char array big enough to read in input

Question: How can one do 64-bit or larger math calculations in C++? Do you know of a free class or class library that supports large scalar math? Answer: There are

Question: How can I write and delete individual lines of a text file?Also, how can I bubble-sort the whole text file alphabetically? Answer: There is no support in thelanguage to

Question: I have a class with multiple parents. In my copy constructor, should I invoke the parents’ copy constructor or their default constructor? Answer: In all but the rarest of

Question: When I run the following program:#include main(){fstream printer1;printer1.open(“prn”, ios::out);printer1

Question: How do I send the output of my program to the standardprinter installed in Win95 or NT?Is it possible using the

Question: I’m anxious to know why my program is notdisplaying the data, yet it compiles perfectly.I want to read this struct; in particular: age. Ihave two sets of code that

Question: How are Virtual Functions implemented in C++ ? What is a virtual table? Answer: Let me start by saying that the C++ language definition does not impose any implementation

Question: I am wondering how Visual C++ implements class templates. The code below is a simple stack class template that can take all the simple data types (char, int, float,

Question: I have an account with a Web space provider which includes a virtual FTP area.I’m trying to write a perl program that, when run, will copy all files from

Question: An old high school friend said he put a picture of himself on the Web, and to view it I should go to JPEG … WHAT DO I DO???

Question: Why are textures important to the high-end rendering and 3D development market? Answer: At the moment there is a “gold rush for textures” in this market. Companies such as

Question: I need to know how to detect the screen resolution of the client machine. Then I need to tell it to go to specific pages based on what it

Question: Is it possible to really touch something in VRML, not just have a texture map that looks like a touchable surface? Answer: This depends on whether you have the

Question: I’m working on a Web site in Microsoft Front Page, and when I browse the home page in either Netscape of Internet Explorer, all the hyperlinks on the page

Question: Someone told me I have to specify a MIME encoding somewhere on my server. Would you be kind enough to tell me where on a Windows NT server Internet

Question: Is there software out there that allows one to create interactive VRML worlds without knowing how to program? Answer: Yes: Fountain Pro from Caligari, Virtual Home Space Builder from

Question: I’m wondering if/how one can link two or more embedded VRML objects in a single Web page so that both objects would respond to the same key/mouse input. I’m

Question: How can I achieve photographic 3D environments on the Web? Answer: QTVR is a type of movie file format that enables users to navigate photo-quality scenes. There is a