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Environment: VC6 I needed a way to display images full screen but I did not want the image to change its aspect ratio since that would distort its shape. If the image was very narrow it would expand to fill up the whole width of the screen making the image look too wide. To fix […]

However, one method to get around this is to dynamically create a linked list such that each element in the list represents a single digit of the result. That way, theorically speaking, the result’s length is only limited by the memory! Steps to Use Set up a dual_direction linked list,and allocate the first element which […]

The arithmetic coding data compression method is very well-known. It has a number of implementations used in of popular complex, multistaged compression techniques. This article, therefore, assumes that the reader will be readers with the basic concepts of arithmetic coding. This article describes an optimization point I found in the most commonly used adaptive Witten-Neal-Cleary […]

Environment: VC5, VC6 Introduction Recently I wrote a program in which I wanted to generate a CRC for a given file. I did some checking on the web for sample CRC code, but found very few algorithms to help me. So I decided to learn more about CRCs and write my own code. This article […]

Environment: Developed in (but not restricted to) VC6 This article give a brief, non-academic (=no dwelling into time complexity issues), explanation of what binary trees are about. It also provide source and demo of a generic tree class. Functionality to balance the tree is also described/provided. About binary trees Say you have a list or […]

Environment: .NET Beta 2 This article tells you how to get images in a data grid If you try to display bitmaps in a data grid, you see only a text message for the bitmap. For displaying bitmaps, you must create an own table style for your data grid. Furthermore you need a ‘DataGridImageColumn’ class […]

Environment: VC6, Win9x You can use this code to let your program run automatically at system startup, it shows you also how to use some of API registry functions. Before you start you must know that Windows knows what to run at startup by keeping a list of program’s name and pathes under the following […]

This article is brought to you by Premier Presspublisher of Kevin Hawkins’ and Davide Astle’s OpenGL Game Programming. OpenGL provides the programmer with an interface to graphics hardware. It is a powerful, low-level rendering and modeling software library, available on all major platforms, with wide hardware support. It is designed for use in any graphics […]

Environment: Visual C++ 6, Windows 95/98/Me/NT/2000/XP The class CPrivateProfile is a wrapper class around the Win32 functions GetPrivateProfileString and GetPrivateProfileInt. It enables an easy way to traverse and read INI files. The allocation and deallocation of needed internal buffers will be managed automatically. You can easily extend the class by write and delete operations. CPrivateProfile […]

ActiveX Control as well as container, exposing toolbar. Includes event mapping of toolbar buttons at client side. . Environment: VC6 , NT4 , ATL 3.0 INTRODUCTION The control, I’m presenting here is not a utility or something like that, rather it is one kind of implementation in ATL. Where I found lots of guys in […]

Web Services is a way of marshalling procedure calls across the Internet. Of course, you don’t have to use Web Services with the Internet; you can use Web Services within the same application or across any other network. It just happens that the Internet is the most important environment that Web Services target. Until recently […]

How to use ATL OLE/DB code with an ADO connection . Environment: VC++ 6, Windows 2000 This article is for Visual C++ — OLE/DB programmers that are using ATL but must interact with components or code (from VB or even Visual C++) using ADO. Some time ago was really a problem for me to use […]