Re: Switching to Double Hi-Res (DHGR) within a program

[vectorthom <greg.rossiter@gmail.com>]

On Oct 27, 7:01 am, alawt...@spammenot.mac.com (Anthony Lawther)
wrote:
> vectorthom <greg.rossi...@gmail.com> wrote:
> > Hello all,
>
> > I'm trying to learn how to use Double Hi-Res graphics on the Apple
> > II.  I've recently acquired an Apple IIe to replace one my family sold
> > years ago and am reliving my '80s childhood through old floppy disks
> > that I still have on-hand.  I don't remember even knowing about double
> > hi-res graphics back then, but I'd like to start experimenting with it
> > now.  I have Broderbund's Dazzledraw (a DHGR program) and a bunch of
> > homemade drawings saved to disk.  I have a Rev. B Apple IIe and an 80
> > col/64k expansion card, so I believe I have the machine capability to
> > display DHGR.  At the prompt, I know that entering "PR#3" will switch
> > me to 80 column mode, where all the text gets visibly thinner.  Is
> > this essentially DHGR mode or is there more to it than that?
>
> > My main question however is this:  how do I switch to DHGR mode once
> > I'm within a program?  As said, I can switch to 80 column mode when
> > I'm at the prompt, but when I reboot to start loading Dazzledraw for
> > example, it hops back to 40 column mode.  I don't see a way to switch
> > back from within the program.  I'm curious to know if I'm viewing my
> > created images at their best or if they would look better in 80 column
> > mode. Is there a relatively easy way to toggle back and forth between
> > video modes?
>
> > Thanks,
> > Greg R
>
> As others have replied, there are ways of switching to DHGR mode.
> However there's no single command and any facility to switch within a
> program will be supplied by that program.
>
> Dazzledraw, being a DHGR program does the switching for you. So to
> answer your curiosity, if you are using Dazzledraw to view pictures
> created in Dazzledraw, then you are seeing them at their best.
>
> Regards,
> Anthony.

Cool, thanks Anthony and everyone else for your responses.