CodeGuru Staff

From Kate Gregory’s Codeguru column, “Using Visual C++ .NET“. –> C++ templates are like a secret weapon for developers. Those who never got around to learning C++ because “it’s really complicated” and “it has all kinds of funky features no one would ever use” have no idea what we can do with templates. In my […]

Environment: VC6, Windows 9x/NT/2000/XP This article shows how to create a shaped window using a bitmap image file and using the mouse to drag it. The basic scheme is to scan a bitmap image data, skip over the transparent pixels, and create the region when a non-transparent pixel is found. For subsequent non-transparent pixels, the […]

Click here for a larger image. Environment: VC5/VC6/VC7, Win95/98/ME/NT/2000/XP Introduction Today, security becomes more and more important. Very secure encryption and authentication algorithms are designed (for example, AES and SHA). But, the best algorithms are useless if crackers bypass these systems by simply exploiting simple security bugs of operating systems… As you probably are thinking […]

Click here for a larger image. Environment: Win2K, WinXP Being new to C#, I wanted to jump in with a relatively simple Windows program to get started. So, for my first app, I wanted a context menu that had little icons next to menu items, like most standard menus seem to always have. I thought […]

Introduction This latest version includes a Multi Select TreeView Control that lets you choose among a few different ways of selecting TreeNodes. There is a test project set up (MWControlsTest) to test all of the MWControls. MWControls contains: MWTreeView: A Multi Select TreeView Control (MultiSelect, Multi-Select) MWScrollLabel: A Label Control that scrolls the text back […]

Click here for a larger image. Environment: VC6, WTL 7.0, WinXP My desire to create one button to blow away all files left on my machine from my browser led me down the path of the URL Cache. This seems to be the place where all Internet-related files are managed. Of course, this journey turned […]

Environment: VC6 SP4, NT4 SP3, Win95 and above, Win2k and above Introduction After publishing my POP3 class in 2001, lots of e-mails reached me. Most people were not asking for a problem or reporting bugs but they asked me how to de- or encode Base64 data. I think at the beginning of 2002 a new […]

Part I: How to Use DataLists and DataGrids in ASP.NET Common relationships in object-oriented programming are the aggregation, association, and dependency. When object A is composed of and responsible for the lifetime of a contained object B, we call this relationship an aggregation. When object A uses the facilities of another object B but is […]

Environment: VC++, charting The following is the description for using a MS Chart control in VC++. The diagram below will give you an idea of the chart we are going to make. Firstly, insert the chart control in your project using Project->Add Reference->Microsoft Chart Control. Next is populating the chart control. When I was working […]

Environment: Visual Basic 6.0 My purpose for writing this program is to present a visual demo or screen saver-type program. This program, however, is not a a screen saver. It will not be acknowledged by your computer as a screen saver when it is runn, but could be used as the basis for one. This […]

Code generators are powerful and contribute in diverse circumstances in .NET. If you have used a Web Service then you benefited from the code generator relying on the CodeDOM that writes a proxy class, making the Web Service easier to call. (It is also easy to overlook the existence of the proxy class.) This is […]

Environment: .NET 1.1 Introduction The Trace and Debug classes are included in the .NET framework for adding tracing support in an application. Proper tracing in the code helps in application debugging, bug fixing, and profiling. Three unique features of the .NET tracing support are: support of trace filtering using Trace Switches, Trace Listeners, and trace […]