To understand what a video intercept manager is, and which task it performs, you first need to understand how jaws works on complex graphic user interface of windows. Jaws has its own special way to obtain information about the screen and the control (window) you're working with. have you heard of graphic device interface (GDI)? If not, then, keep in mind that whatever elements (whether pictures, characters, colors and vice versa) exhibit on the moniter, are handled by this GDI. GDI stores and processes all the graphic related requests. Now, as you've got a basic idea about GDI and windows graphic management, it is worth notable that jaws relies heavily on this GDI to get information about graphics, text and colors of the screen and current control. This is all done by video intercept manager, which captures screen with the help of certain GDI functions, extracts helpful information about current control for visually challanged people, and lastly provides it to the main application of jaws which, with the combined efforts of other utilities of jaws such as config manager, script manager, keyboard manager, dictionary manager ETC. gathers enough and relevant information to be verbalized by the speech engine (Eloquence). So now, you can understand that without video intercept manager, jaws cannot perform its work partially. "partially?" yes, partially. Because as other screen reader applications, jaws also uses Microsoft active accessibility (MSAA) to obtain information about the current control, but to be more accurate and explicit, it uses video intercept manager. Remember: if you're facing problems in terms of video intercept manager, reinstall your graphic drivers from the mother board CD.
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