Budd wrote:
>
> What is the purpose of Virtual screens? What difference
> does it make if I turn the option on or off?
A virtual screen is a copy of the current AND some succeeding screens in
memory. Since the screens already have been rendered, it's just a matter
of copying the apropriate parts of them to video memory to let you scroll
up or down quickly and more or less smoothly.
The drawback is these screens have to be created - and that process slows
down the initial load.
Without virtual screens, the first screen should come up much more quickly
but when you want to scroll down, that next screen has to be created so it
takes more time and it jumps.
Also, some Arachne functions need virtual screens enabled in order to work
because they must have all the info on the page available to them. Smooth
scrolling is one of these functions and PAGE print (export fullpage .BMP)
is another.
The SCREEN print (print screen key) doesn't need virtual screens because
it just exports a .bmp of the actual VIDEO screen - Arachne included !
- Clarence Verge
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