CodeGuru Staff

Click here for a larger image. Environment: .NET, C# Introduction The main goal of this work is to design a control containing sensitive elements of various types. An output of the control is its current state comprised of sensitive elements states. The control should be smart and flexible enough to accommodate the bulk of the […]

Environment: Windows 2000/XP, VS.NET, XP-DDK This software consists of a RAM disk driver (RAMDisk.sys), an Installer/Property sheet provider (RAMDisk.dll), and an installation file (RAMDisk.inf), which together form an installable RAM disk on Windows 2000 and Windows XP. The driver is almost identical to the Microsoft sample driver (See KB Article Q257405). The installer/property sheet provider […]

This article was contributed by chensu. Environment: Visual C++ 6.0 with Service Pack 3, Windows 9x and Windows NT 4.0 with Service Pack 3 You can use WinInet to download a file from the Internet. But the easier way is to use the ::URLDownloadToCacheFile or ::URLDownloadToFile functions. The URL functions combine the capabilities of asynchronous […]

Environment: C# Introduction In this article, we will see something about reflection in .NET. First, we will see what the System.Reflection namespace will do for .NET developers. Reflection allows the inspection of metadata in a PE file and late binding (run time) to types and their members. The System.Reflection namespace defines the following types to […]

Sandeep from Calcutta, India wrote me asking how he could programmatically manage keyboard state information in Visual Basic 6. Specifically, he asked about managing the caps lock state. As I usually do, if someone sends me some running code showing what they tried, I spend some time to help them work out their problem. I […]

Environment: ATL Lots of people think that ATL is used only for making COM components. But, in fact, you can create a fully fleshed Windows-based application using ATL by using ATL’s Windowing classes. Although you can convert your MFC-based project to ATL, there is very little support of the UI component in ATL, so you […]

Click here for a larger image. Environment: VC++ 6.0, NT 4.0, Win2000, Win95/98 Introduction Sometimes, when we are using the IE Browser Control inside of a C++ application, we need to access the HTML elements. We can do it by using standard COM objects such as IWebBrowser2, IHTMLDocument2, and so forth. By doing this, we […]

Environment: Visual C++ 6.0 with Service Pack 3, Windows 9x, Windows NT 4.0 with Service Pack 6a, and Windows 2000 Audio Mixer Functions are a set of functions that control the routing of audio lines to a destination device for playing or recording. They can also control volume and other effects. Although there are only […]

Environment: VC++ 6.0, W2000 RegDialog is the MFC-based dialog that will help you to manage shareware applications’ registration. When the shareware application is started for the first time, information about the company, applicant’s name, version number, trial period, and starting date is created in the Registry. Every following time the user starts the application, RegDialog […]

This article was contributed by Anand Narayanaswamy. Environment: .NET and C# In this article, you will learn about the usage of various exception handling statements in C# with the help of relevant listings. Trapping and handling of runtime errors is one of the most crucial tasks ahead of any programmer. But, before discussing runtime errors, […]

The Session cache is an instance of the HttpSessionState class. Instances of this class are accessible through a Web Page or an HttpContext object and are useful when building ASP.NET Web Applications. The Session cache is a name and value dictionary capable of storing any data that can be serialized-converted into an XML representation. Simple […]

Environment: VC6, Win95-XP Introduction This control works like “Rollout panel” in 3dsmax: When you click on a checkbox, some additional controls are shown. Another click on a checkbox will hide controls. Notice that other controls in a dialog are also moved and the dialog itself is resized. I tried to find something like this on […]