You indeed have the correct definition of CRC. It was originally used to protect data transfers, such as by modem, from errors by providing a way to detect them. Nowadays a CRC has many uses, including as a sort of ID for graphics in screen readers. Other similarly used values would include checksums (older than the CRC) and MD5 hashes (also called digests, I believe). The point of them all is to represent a larger amount of data by a smaller one, for purposes of identifying or verifying the integrity of the larger one.
On Tue, Apr 12, 2011 at 09:59:22AM -0400, RicksPlace wrote: Hi: I read a icon under the mouse and get the short and long CRC Values spoken I would like to know what the acronym "CRC" stands for- Googling it comes up as "Cyclic Redundancy Check. A CRC is a type of check value designed to catch most transmission errors." Is this the correct definition as used in the WE Docs for Images and Icons when speaking the short and long CRC values, numpad insert up arrow 2 or 3 times.? I also want to pick it up in my script to get a hard copy of the diferent icon CRCs used in a particular window or WindowControl if possible. I haven't found anything in the Scripting Manual yet that will let me do that so far unless I missed it. Any ideas or pointers? Thanks: Rick USA -- Doug Lee, Senior Accessibility Programmer SSB BART Group - Accessibility-on-Demand mailto:[email protected] http://www.ssbbartgroup.com "While they were saying among themselves it cannot be done, it was done." --Helen Keller
