[plt-scheme] Need help understanding some DrScheme options

From: Robby Findler (robby at cs.uchicago.edu)
Date: Sun Feb 17 21:06:31 EST 2008

In all cases, files are opened within a single DrScheme instance at
the OS level (or, perhaps more accurately, the preferences are all
specific to particular instance and DrScheme itself never creates a
new instance of itself).

The first option should probably go away. It is a holdover from before
we had tabs. It will reuse the window (or one tab in a window if there
are multiple tabs) when opening a new file. The old file will just not
be open anymore in DrScheme.

I recommend checking tabs and not the other one.

And, just to be clear, separate windows are still being created within
the same drscheme os-level process. (To see if you have multiple
OS-level processes somehow, look at the Windows menu. It only shows
windows within the same process.)


On Feb 17, 2008 7:05 PM, Grant Rettke <grettke at acm.org> wrote:
> In my notes on how to use DrScheme, I had written:
> Reuse existing frames when opening new files. Left unchecked, opening
> or creating a new file will occur within a new IDE window. Open files
> in separate tabs (not separate windows). Left unchecked, opening a
> file will occur in a new window, and creating a new file will occur in
> the same editor. You should check both features. It will prevent
> multiple instances of DrScheme, conserving resources, and perhaps
> equally as important, it will make DrScheme more fun to use."
> I think this is incorrect.
> The first option determines whether or not files get opened within the
> same DrScheme instance.
> The second option determines whether or not the file that is getting
> opened replaces the existing file (within a given instance), or opens
> a new tab (within a given instance).
> Is that right?
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