The .NET framework was designed to be the “lingua franca” for Windows development, with the expectation that it will set a new standard for building integrated software for Windows. However, it is inevitable that there is a time lag before .NET is fully adopted and existing applications are recoded. In particular, there is a large body of legacy code that will likely never be rewritten in .NET. To address this situation, Microsoft provides attributes, assembly, and marshaling. At the Numerical Algorithms Group (where I work), our particular interest in using these techniques is to utilize numerical software developed in C from within the .NET environment. Because C# is the premier .NET language, the examples I present here are in C#. While I use an example of data types that are current in the NAG C Library, the techniques I present are general enough for calling unmanaged code written in C from C# directly.
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Before starting, make sure painted and trim surfaces are protected to avoid scratching during installation process of the items. Use proper surface protection covers and work attire free of dirt and grease.
Caution: Read entire instructions thoroughly before starting. Installation should be performed only by a qualified person. Observe all safety precautions when working beneath a vehicle. Beware of sharp edges. Always wear safety glasses for eye protection.
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In this chapter, you’ll learn about OOP (Object-Oriented Programming) and how it relates to JavaScript. As an ASP.NET developer, you probably have some experience working with objects, and you may even be familiar with concepts such as inheritance. However, unless you’re already an experienced JavaScript programmer, you probably aren’t familiar with the way JavaScript objects and functions really work. This knowledge is necessary in order to understand how the Microsoft AJAX Library works, and this chapter will teach you the necessary foundations. More specifically, you will learn:
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The main focus of this research is on the support and enhancement of face to face teaching and learning by using wireless mobile devices (WMDs or smartphones) as a means to leverage the potential of current and emerging collaborative and reflective e-learning tools (e.g. blogs, wikis, RSS, instant messaging, podcasting, social book marking, etc…). These are often called “social software” or web2.0 tools. The research project links the use of freely available mobile friendly web2.0 tools accessed via a smartphone with the learning objectives of a variety of different tertiary education courses. The smartphone’s wireless connectivity and data gathering abilities (e.g. photoblogging, video recording, voice recording, and text input) allow for bridging the on and off campus learning contexts – facilitating “real world learning”.
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This tutorial provides an introduction to coding for mobile devices using C# and Visual Studio. There are many topics to cover, so unfortunately we will not be able to go into much depth in the time available. However, feel free to contact any of the organisers after the tutorial if you have any questions. We are all postgraduate students who completed our undergraduate degrees in computing science at Glasgow, and we are happy to chat about your projects or anything else to do with software development.
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Modern object-oriented programming languages like Java or C# support multithreaded programming. They allow several threads to run concurrently sharing objects on the heap in the same address space. Each thread has its own frame stack, program counter, local variables and registers. The languages have special syntactical constructs for synchronization. Java has a synchronized statement and synchronized methods, while C# has a lock statement and several attributes that can be applied to classes and methods to control their run-time synchronization behavior.
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This guide assumes that the reader has a basic understanding of what ArcGIS and the .Net framework is, as well as a rudimentary understanding of how object oriented programming works. For more information about .Net and object oriented programming, follow the links in Appendix B.
In order to program with ArcGIS there are two products that you will need to have installed on your computer. First, you must have either ArcGIS Desktop, ArcGIS ArcInfo or else have the ArcGIS Engine installed. Once these one of these are installed you will be able to run the code you compile in the ArcGIS environment. The other ArcGIS product you need is the Developer Tools for Microsoft.Net that provides access to the .Net framework and the functions that ESRI has made for .Net as well as the Developer tools that install an API for ArcObjects. It is also important to make sure that your software is up to date, which you can do by checking the ESRI website to see if there are updates or service packs for your software (this tutorial was written using ArcGIS 9.2 Service Pack1).
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The ViewSonic VA2226w provides large 22” widescreen desktop viewing, including future-proofed OptiSync technology with HDCP at an affordable price. This large 16:10 aspect ratio LCD lets you see more and work more efficiently. Have two applications or documents open side-by-side. Experience games and movies in a fantastic new big cinema format. Thanks to the new advanced Dynamic Contrast VA2226w 22” WIDESCREEN LCD MONITOR VA SERIES WITH DIGITAL HDCP INPUT Ratio, your images, graphics and videos will appear crystal-clear with colour like you’ve never seen before.
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