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MouseButtonTest This is a simple program I wrote when I needed to detect the right mouse button click in a listbox and couldn’t find it in the VS.NET IDE. In the documentation I came across a class called "MouseEventArgs". MouseEventArgs is passed to a MouseEventHandler defined for the listbox. In the InitializeComponent() method for the […]

This article is based on another article I did, DNSWATCH, at https://www.codeguru.com. You might want to take a look at that before proceeding because this is a newer version with more features, and some new code. The program is based on DNS host name lookups done by programs, mainly browsers. It lists them and allows […]

Environment: VC++, MFC Introduction The purpose of the article is to design a C++ class that does URL encoding. The motivation behind this article was that, in my previous project, I need to post data from a VC++ 6.0 application, which was required to be URL encoded. I have searched the MSDN to include a […]

Environment: Internet, Networking Introduction This article shows how to create one ATL COM component using the WinInet functions, how to use it in ASP programs, and how to test it from the Visual Basic client. It also shows how to use multithreading support in this component. This component can be used in the same way […]

    Environment: Internet, Network, VC++ Introduction Since at least the early 1990s, people have been using the “hosts” file on their computer to dramatically speed up Internet browsing and to very effectively block not only pop-up ads but ads in Web pages as well. The hosts file is unusual in that it has NO […]

Environment: ASP .NET, ASP –> The drag-and-drop can be obtained in two ways; the first is OLE and the second is using the MFC. MFC supports the functionality of drag-and-drop without using OLE. To enable drag-and-drop in your application, you’ll have to perform the following tasks: The CWnd::DragAcceptFiles () enables you to accept the drag-and-drop […]

Introduction This article addresses the problem of determining when a document has been modified. In the particular case of word processors, it appears that most programs tend to have a ‘dirty’ flag that is set when a user types. This seem to be the case even when a letter is typed, and then backspaced over […]

. Click here for larger image This is the 2nd revision to the original article. I would like to thank everyone who posted comments and any answers to those comments that I’ve used in this latest revision. If you need to change the background color of CEdit controls on your dialog, it is very simple […]

From Kate Gregory’s Codeguru column, “Using Visual C++ .NET“. –> If you’re porting older C++ code to the .NET Framework, you probably already know that code using templates and the STL will compile to intermediate language without any difficulty and will run in the runtime as managed code. But, if you’re writing a new Managed […]

Environment: VC++ 6, Systems Introduction A few days ago, I faced a problem regarding a minimize button for a window with the style WS_EX_TOOLWINDOW. Because there is no support for a minimize button with this style, I had to do it on my own. While working on the solution, I knew I would post the […]

Click here for a larger image. Environment:VC6 SP4, NT4 SP3, Win98, Win2000 ComboTree is a hybrid ComboBox with a tree control replacing the drop down ListBox. Implementing a hierarchy of choices using multiple dependant combo or list boxes can take up a lot of screen space and can be awkward to use. A dropdown tree […]

Click here for a larger image. Graphs of uploading time needed in ASP/ISAPI. Environment: ASP, ISAPI Description This article describes two ways to to upload images and files to your Web server, and the advantages and disadvantages of both. Uploading files from a browser is often a Web site requirement. For instance, let’s say that […]