The Design And Implementation Of Windows8Metro Style Instant Messenger Based On XMPP Protocol

Windows8is developed by Microsoft, with the revolutionary changes in the operating system, relative to the previous generation Windows7operating system, Windows8’s most important change is that the operating system platform, mainly to improve the user experience on mobile phones, tablets and other mobile devices, in order to compete with other operating systems such as Android and ios. Compatible with Window applications at the same time, the Windows8Metro applications using a new runtime and a new programming language, C++, C#, Visual Basic, and add support for HTML5language.HTML5technology actually refers to a combination of technologies, including HTML, CSS, and javascript. Compared with the previous version, HTML5has added many new features, for example:new label, microdata and microformats support; local storage characteristics; compatible support for video, audio and geographic information equipment; the support of three-dimensional graphics and special effects, such as SVG vector and Canvas; new CSS3. In short, HTML5strengthen the performance properties of the Web page, added a local database functionality, makes it very suitable as a Web application or native application programming language.XMPP (Extensible Messaging and Presence Protocol) protocol is an XML-based protocol, which integrates flexible XML environment. Therefore, the XMPP-based applications with superior scalability, extended XMPP protocol by sending extended information processing used to demand, as well as in the top of the XMPP such as content publishing system based on the address of the service application.As before the start of the project, no Windows store in a stable and reliable instant messaging software, we decided to design a Windows Metro Style instant messenger software. In this instant messenger software, we use the HTML5programming language for client development, XMPP protocol to communicate between client and server-side, articles will be described in detail the design and implementation of the process used to Windows8Metro HTML5and XMPP protocol technology..