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Issue 7.4

COLUMN

Typecasting

Working with datatypes

Issue: 7.4 (May/June 2009)
Author: Marc Zeedar
Author Bio: Marc taught himself programming in high school when he bought his first computer but had no money for software. He's had fun learning ever since.
Article Description: No description available.
Article Length (in bytes): 16,144
Starting Page Number: 46
Article Number: 7414
Resource File(s):

Download Icon 7414.zip Updated: 2009-05-01 11:25:10

Related Link(s): None

Excerpt of article text...

In last issue's Beginner's Corner, I wrote about working with windows. One feature involved building a menu of open windows where I saved the window's reference into a menuitem's tag property. I did this with code that looked like this:

docWindow(wmenu.tag).show

A reader wrote with a question about this and I realized that I probably glossed over an interesting topic. The above code confused the reader because the syntax makes it appear as though I'm passing wmenu.tag as a parameter to docWindow. That's not at all what's happening, but since the syntax is the same as passing parameters to functions, it certainly is confusing. I know when I first ran into this I found it bewildering.

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