Mua he 2009-2010

Thứ Sáu, 30 tháng 7, 2010

Programming With Variants

JON BURN
Jon has been programming with Microsoft Windows since the mid-1980s. Originally working with C, he now uses Visual Basic for all his programming tasks. He has worked on retail software, such as the PagePlus DTP package, and a lot of other custom software in the corporate environment. Jon has also taught programming and written various articles about it. He is currently working on graphics software for business presentations.Microsoft Visual Basic 6 further enhances the Variant data type from the previous version so that it can now hold user-defined types (UDTs). This creates yet another reason why you should become familiar with Variants and what they can do. In this chapter I will take an in-depth look at Variants and discuss the benefits and pitfalls of programming with them.

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