[jawsscripts] Re: Hello and Scripting Problem

Well, global variables are usefull but when you're in a multi threaded
enviroment, or when you have functions writting and retrieving values
from global variables you have to take care.
Jaws scripting is designed to solve only a subset of problems, from
which, in my opinion, global variables are more usefull than
dangerous, although even in scripting you can make logical mistakes
when using global variables if you don't know what you're doing.
In programming most part of people always try to teach things they
like as great and things they don't like as horrible, but no feature
are really bad if you know what you are doing and how to do it. Global
variables might lead you to serious bugs in softwares in some
sircunstanses, but this won't happen if you know exactly what you're
doing.
As students and even those experiensed programmers might have some
errors, we try to avoid everything that could make it easier to have
them ... and global variables are included in the groups of features
that can lead one to some errors. But sure they help to solve many
problems and, if used the correct way they can help a lot.
hth
Marlon

2008/1/18, James Dietz <James.Dietz@xxxxxxxxxxx>:
> Hey,
>
> Thanks a lot.  The script now works, and it's all thanks to global
> variables.  (I'm in my college's CS program which has spent a lot of
> time convincing me that global variables are evil, but jaws scripting
> isn't very complex anyway).
>
> James
>
> ----- Original Message -----
> From: Bryan Garaventa <bgaraventa11@xxxxxxxxxxxxxx>
> Date: Friday, January 18, 2008 12:22 pm
> Subject: [jawsscripts] Re: Hello and Scripting Problem
> To: jawsscripts@xxxxxxxxxxxxx
>
> > If you are always switching to the image window from the text
> > window, just
> > write a statement before the control+tab script activates, which
> > will save
> > the current window handle to a global variable. You will just need
> > to get
> > the class for the current window, which would be the text window,
> > to ensure
> > that this is the right window when running.
> >
> > For instance,
> >
> > globals
> > handle h_text_window
> >
> > ; Then add the following code to the beginning of the control+tab
> > script...
> > if GetWindowClass (GetFocus ()) == "TextWindowClassName" then
> >
> > let h_text_window = GetFocus ()
> >
> > endif
> >
> >
> > ; Then when you want to switch back to the text window from the
> > image
> > window, you could use the following code within the top of the
> > control+tab
> > script...
> >
> > if GetWindowClass (GetFocus ()) == "ImageWindowClassName" then
> >
> > SetFocus(h_text_window)
> > Return
> > endif
> >
> > Hope this helps,
> >
> > Bryan
> >
> > ----- Original Message -----
> > From: "James Dietz" <James.Dietz@xxxxxxxxxxx>
> > To: <jawsscripts@xxxxxxxxxxxxx>
> > Sent: Friday, January 18, 2008 8:04 AM
> > Subject: [jawsscripts] Hello and Scripting Problem
> >
> >
> > > Hey,
> > >
> > > Glad to be on the list (I think -- got an automated "subscribed"
> > > message anyway); I haven't seriously tried Jaws scripting in
> > years and
> > > forgot how neat it was.  I'm trying to step up my scripting
> > game, which
> > > is why I joined this list etc etc.
> > >
> > > Anyway to business:
> > > I'm writing a very simple script for a free OCR program called
> > TopOCR> (topocr.com) which is a pretty good program with an
> > annoying interface;
> > > it seems to have two separate windows (one for the scanned image and
> > > one for the recognized text) which are not children of one main
> > > window.  It's possible to switch between them using the utility
> > > functions (homerow+tab and left click) and unrestricted Jaws
> > Find but
> > > I'm writing a script to do that at the press of a key
> > (ctrl+tab).  I've
> > > figured out how to switch from the text window to the image window
> > > (just SetFocus(GetNextWindow(GetForegroundWindow()))) but not
> > how to
> > > switch back to the text window to read the OCRed results/save to
> > word> etc.  Using NVDA's incredibly useful object navigation
> > feature (beats
> > > the jaws utility functions in intuitiveness) I discovered that I
> > should> be able to switch to it by getting the prior window of the
> > parent of
> > > the focus but nothing happens.  My original plan was to FindWindow
> > > starting at the desktop
> > > for the window with the text window's class, but a) there
> > doesn't seem
> > > to be an equivalent to the windows API's GetDesktopWindow and b)
> > 0 for
> > > the handle parameter just gives me the app top level window which
> > > doesn't seem to work in this app (two separate windows with the
> > desktop> as their parent like I said).  Hopefully one of you will
> > have a better
> > > idea of what might work - I'm pretty new to scripting in general
> > > afterall.  Of course if you need more info or if I wasn't clear
> > enough> please let me know.
> > >
> > > Thanks a lot,
> > > James
> > > __________
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> >
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> >
> >
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>


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When you say "I wrote a program that crashed Windows," people just
stare at you blankly and say "Hey, I got those with the system, for
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