Simple .NET/ASP.NET PDF document editor web control SDK

If you re not a member of a speaking club, you should be. Any speaker can bene t from attending a regular meeting with the sole purpose of learning and improving a full range of speaking skills. Toastmasters International, at www.toastmasters.org, is a good choice because it s inexpensive and all clubs are run by the volunteer efforts of their members. When you join, you ll participate in speaking exercises during meetings and give a series of prepared talks according to a sequence in a training manual. The biggest bene ts will likely come from simply attending regularly. As you re exposed to more speaking opportunities in a supportive environment, you ll develop skills to manage your nervousness, and your con dence will increase not just in public speaking but in all aspects of communication. Many clubs haven t yet embraced the use of presentation technologies. If your local club doesn t yet use PowerPoint, bring a data projector and introduce some of the ideas you ve picked up in this book to blend projected media and solid speaking skills.

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In the preceding code, I use the functions type and isinstance to find out whether the object is a tuple. If it is, its second element is returned; otherwise, some magic network method is called.

Here s the result:

There is a more full discussion of ActiveSupport::Multibyte at http://www. ruby-forum.com/topic/81976.

A live presentation draws on the full spectrum of communication skills, but almost no one is good at everything. You re probably better at one part of the BBP process for example, writing your story, editing your headlines, distilling your ideas to their essence, checking your reasoning, creating visuals, or actually speaking and presenting. When you know your strength, pick a different area to work on improving. For example, if you re good at writing, learn graphics, or if you re good at graphics, work on your public speaking. Only by stretching can you keep on growing.

Note Conversion between different character encodings is provided by the iconv library, covered in

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Assuming that the network stuff already exists, you ve solved the problem for now But this still isn t very flexible What if some clever programmer decides that she ll represent the price as a string with a hex value, stored in a dictionary under the key 'price' No problem: you just update your function: # Don't do it like this.. def getPrice(object): if isinstance(object, tuple): return object[1] elif isinstance(object, dict): return int(object['price']) else: return magic_network_method(object) Now, surely you must have covered every possibility But let s say someone decides to add a new type of dictionary with the price stored as under a different key What do you do now You could certainly update getPrice again, but for how long could you continue doing that Every time someone wanted to implement some priced object differently, you would have to reimplement your module.

Try creating an unconventional note-taking handout by including only the three Key Point slides on a single piece of paper. As the audience members see each Key Point slide on the screen, it will cue them to the corresponding image on the handout and reinforce the top-level visual-verbal message you want to communicate.

Summary

In this chapter we ve looked at an array of advanced Ruby topics, from dynamic code execution to writing high-performance functions in the C programming language. This chapter is the last chapter that covers general Ruby-related knowledge that any intermediate Ruby programmer should be familiar with. In 12 we ll be taking a different approach and will develop an entire Ruby application, much as we did in 4. Let s reflect on the main concepts covered in this chapter: Binding: A binding is a representation of a scope (execution) context as an object. Forking: When an instance of a program duplicates itself into two processes, one as a parent and one as a child, both continuing execution. Tainted data: Data whose source or origin cannot be entirely trusted or is unknown. Safe levels: Different safe levels result in the Ruby interpreter having different restrictions upon what code it will process and execute. Win32API: A Ruby library that gives you access to the Windows API: a set of libraries offering functions that provide access to the Windows kernel, graphics interface, control library, networking services, and user interface. Windows Automation (also known as OLE Automation): A system that allows Windows applications to register servers for themselves that allow other applications to control them remotely. You can learn more at http://en.wikipedia.org/ wiki/OLE_Automation. Threads: Separate strands of execution that run concurrently to each other. Ruby s threads are implemented entirely by the Ruby interpreter, but in general threads can also operate at the operating system level and are a commonly used tool in application development. C: A compiled, high-performance language developed in the 1970s that s used in most of the world s operating systems and low-level software. You can use C code within Ruby using the RubyInline library.

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