scanning under windows WIA with custom settings (dpi / etc )

[r]

On Nov 22, 11:32 am, News123 <news... at free.fr> wrote:
> Hi,
>
> I'm trying to scan a document from a python 2.6 script without user
> interaction.
>
> I found  a code snippet, that allows me to scan under Vista, but that
> doesn't allow me to select the dpi / color mode / etc.
>
> The snippet uses win32com.client


Hello,
I would also like to know the answer for which i am investigating now,
although like yourself i don't know much about the windows API and the
MSDN docs aren't helping much :(. All i can understand is that doing
anything in windows is a real PITA!

I am sure someone (or many) have climbed this mountain before but all
of them seemed to have forgotten to leave us the map that shows the
easy way up... bummer! The PyWin32extensions are great but lacking
detailed information of how to use the thing. And i know some GUI kits
like wxPython have Printer support but thats not really what i am
talking about here. I want the functionality directly from Python with
only win32extentions needed! We need to extend on the great work of
PyWin32 *OR* create a new module that will be an abstraction of the
Win32 module.

The problem with Windows scripting is all the crap you need to do
before you can even set parameters. Get a device context or find some
cryptic dispatch code, then mull over some even more cryptic options
and such. By now your eyeballs are about to pop out of there sockets
and your head is ponding from a massive hemorrhage and yet you still
have nothing to show for all this jumping through MS hoops!!!

There needs to be a drive to make some docs and post them somewhere.
This knowledge must be shared! The best place would be in the PyWin32
docs, but i don't expect the creator will do this, he has given us the
vehicle now we must forge the path.

I am willing to help create this if someone with even a small amount
of win32 knowledge could lend their expertise (any takers? send me an
email!). I would write all the Python code to implement these actions
very easily. (of course i'm not promising ground breaking code here
just something that works, but a hack is better than nothing!

I think a good start would be two classes for dealing with Printers
and Scanners in a very pythonic way (no device contexts!!!), from
there the sky is the limit!


##PRINTING RAW STRING##
import win32printer
printer = win32printer.get_default()
if not printer.online():
    showerror('', 'Turn it on first you idiot!')
    sys.exit(1)
printer.options.update({
    'orientation':'landscape',
    'font':('Times New', 12),
    'header':time.ctime(),
    })
printer.print_raw_string('hello printer, i have have arrived!')

##SCANNING##
import win32scanner
scanner = win32scanner.get_default()
if not scanner.online():
    showerror('', 'Turn it on first you idiot!')
    sys.exit(1)
scanner.options['imagetype'] = '.jpg'
scanner.scan(file="C:\\tmp\\image1")

##MORE??##

All the device context and cryptic mumbo-gumbo are nicly hidden from
the user. Of course there will also be option to show dialogs for user
input because that will be needed. With this proposed module the
bumbling confusion can be avoided. Joe-Scripter can study the source
later to learn Win32 more in depth. Yes people i hate windows too, but
for now we all have to deal with Windows like it or not!