CodeGuru Staff

Environment: C# Introduction Attributes are a new kind of declarative information. We can use attributes to define both design-level information (such as a help file or a URL for documentation) and run-time information (such as associating an xml field with a class field). We also can create “self-describing” components using attributes. In this tutorial, we […]

Environment: Introduction Many applications perform lengthy processing “in the background.” Sometimes, performance considerations dictate using multithreading for such work. Threads involve extra development overhead, so they are not recommended for simple tasks such as the idle-time work that MFC does in the OnIdle function. This article focuses on a simple idle processing technique using the […]

Environment: This article describes how to administer a remote database via XMLHTTP and ADOX. It is useful to Webmasters who use virtual hosting. A Review of Remote Database Administration Several years ago, CGI-BIN modules were used to administer remote databases. But until recently, CGI-BIN was used rarely due to the fact that it runs slowly […]

Click here for a larger image. Environment: VC6 SP4, NT4 SP6, ADO 2.5 Everyone knows this. You have a complex table structure in the database, and then you have to customize the software work and change this data. How do you compare and verify the results of the new version with the old? With this […]

Click here for a larger image. Environment: MFC Content-Based Image Retrieval (CBIR) is a way to index or find a similarity between images in a multimedia database. There are methods such as Fourier Transform, Hough Transform, Wavelet Transform, Gabor Transform, and Hadamard transform coefficients to be used as the engine in the CBIR system. Retrieval […]

I wrote a program that uses compression algorithms. These algorithms require a heavy bit manipulation. To make life easier, I wrote two classes: CBitPointer and its supporting class CBit. These two classes made a bit (nearly) look and feel like any simple data type (for example, char, int, and so forth). Now, by using these […]

From Kate Gregory’s Codeguru column, “Using Visual C++ .NET“. –> Web services are a terrific way to integrate disparate systems: cross-platforms, cross-programming-languages, cross-everything. No matter what language you work in, you should be able to do an HTTP GET and parse a little XML. As I showed in an earlier column, it’s incredibly simple if […]

By Anand Narayanaswamy In this article, we will examine all the essential utilities needed to begin C# programming. In the end, you will also learn how to write a simple C# program. Basic Requirements to Start with .NET First of all, let’s once again welcome you to the world of this new programming language. We […]

Click here for a larger image. Environment: Visual C++ 6 This technique is based on objects called Function Controllers and Controller Dispatch System. The Controllers are represented by the FLbase_Controller class. If you want to add any additional functions, you have to make your own Controller by deriving this class and writing these functions in […]

Environment: C# Introduction In this article, I would like to explain how to create and use DLLs in C Sharp. Before writing code, we will examine some basics of a DLL in the .NET framework; for example, how it’s loaded in the process address space, how CLR is initialized, and the mechanism behind the screen. […]

Environment: Developer Studio v6.0, v5.0 When using the Developer Studio IDE, I have always missed some of the functionality I added to my CodeWright environment using a custom .dll I wrote several years back. The two most useful functions I missed most were called SlideInPrompt and Renumber. The SlideInPrompt macro inserts a text string into […]

Visual Studio .NET is a multifaceted gem. You can spend weeks, months, or perhaps a year or more exploring Visual Studio and the .NET Framework. For example, you might be exploring Visual Studio .NET and the Diagnostics namespace for several days before you stumble on BooleanSwitches. (I will get to what a BooleanSwitch is in […]