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Microsoft Windows Forms® (WinForms) is a library that allows you to develop rich applications with graphical user interface (GUI). This library is a part of .NET Framework. Therefore, such a WinForms application can be developed with any .NET language (C#, F#, VB, etc.), and run on any platform supported by .NET Framework. Not only can it be run on Windows, but also on Linux or Mac OS X (see Mono project). Thus, WinForms is considered multi-platform. However, it is a rather old technology. For new projects, consider using Windows Presentation Foundation® (WPF) instead.

One of the key features of the QT framework is providing communication between objects via signals and slots. For QT developers, this is a very convenient and organic way to do things, but the nature of the feature does not allow to communicate between objects located in different address spaces. Therefore, the need arose to create a library that would allow to establish communication between objects located in different processes in a way when user just needs to connect signals and slots of these objects.

The results of this efforts I called the QRpc library, and here is how it is applied and built.

Microsoft SQL database optimization is a constant struggle for any project, and this is something that Apriorit tackles often as an R&D outsourcing company. The thing is, when developing an application, initially engineers tend to point all their attention towards actually writing the code, while performance takes the back seat. Often, performance problems are caused by the speed at which the data from the application is received. Some problems can creep past the MVP stage and only became apparent when your solution is fully released to the general public.

This guide will cover certain ways to detect restart or shutdown of the PC, as well as other similar events, such as log off or sleep. We will be handling the OS shutdown event using WinAPI for different types of applications - console, GUI applications, and services. If you’re interested in the general information on Windows process monitoring, you can also check out this article.

In this article you will find a short overview of I/O completion ports (IOCP), as well as a simple C++ implementation of copying folder with files by using I/O requests. We hope that this guide will prove useful for anyone with basic C++ and Windows API experience and will help them learn the basics and certain specifics of WinAPI IOCP programming.

Mac OS X 10.4 saw the introduction of a new kernel subsystem that proves itself very useful when it comes to managing authorization from the kernel. This subsystem is called Kernel Authorization, or Kauth. It can be used to modify any authorization decisions, which proves very useful for creating anti-viruses, and other security software, as well as for general system access when needed. In this article we will show you two examples of using Kauth subsystem – blocking access to certain files and directories, and listening for mounting and unmounting of specific devices. Both examples will involve creating kernel extension that will use Kauth in order to listen for specific events.

Since its introduction over 2 years ago, Swift gathered a lot of feedback, both positive and negative, and quickly established itself as a popular new iOS app programming language, as well as a great tool to write software for various Apple products. There are a lot of reviews on the Internet comparing Swift vs Objective-C and trying to determine the pros and cons of each language.

This tutorial provides you with easy to understand steps for a simple file system filter driver development. As a result, obtained demo driver is intended to print names of open files to debug output.

This article would be interesting for engineers with basic Windows device driver development experience as well as C/C++ knowledge. In addition, it could be also useful to people without Windows driver development deep understanding.

Web app vulnerabilities, as every developer knows, are a never-ending programming cat and mouse game with would be attackers. While there are too many security issues at times to count, keying in on those that continue to surface year in and year out we feel is an appropriate place to start.