tailieunhanh - Webmaster's Guide to the Wireless Internet part 27

Webmaster's Guide to the Wireless Internet part 27. The Webmaster’s Guide to the Wireless Internet provides the Wireless Webmaster with all of the tools necessary to build the next generation Internet. Packed with the essential information they need to design, develop, and secure robust, e-commerce enabled wireless Web sites. This book is written for advanced Webmasters who are experienced with conventional Web site design and are now faced with the challenge of creating sites that fit on the display of a Web enabled phone or PDA | 232 Chapter 6 Web Clipping user s device the only way to change it is to have the user download the latest version of the WCA. Note_ You can find over 250 WCAs available for download at apps. Many applications have already been built to solve common features that are requested by users e-mail messaging news shopping etc. . You can also post your own WCAs for distribution to users. One of the best ways to learn how to build an effective Web clipping application is to see what others have done successfully and perhaps more importantly to see what others have done unsuccessfully The WCA is viewed using the Web Clipping Application Viewer or Clipper browser which resides on the Web Clipping Application Viewer can send data to and receive properly formatted HTML from a Web server located on the Internet through a network of base stations and proxy servers. In addition a WCA can launch and vice versa be launched by local applications on the device. Note__ It helps to think of WCAs as miniature Web sites stored on the handheld device and to think of Clipper as a Web browser but remember that these concepts are not directly analogous. In actuality a WCA is a Palm Database Format record set that is installed on the device. Its content is static and cannot be updated until a user installs a new version of the application. Likewise Clipper itself is not a Web browser per se but rather a unique application that can render HTML stored in a WCA. Web clipping applications were formerly called Palm Query Applications PQAs .The files created by the Web Clipping Application Builder are saved with an extension of .pqa a vestige of their former nomenclature. In this chapter we will use the term Web clipping application or WCA to refer to what we are we refer to Web clipping we will be .