Re: Copy and Paste

Hi Ally,

I am no longer going to reply to your emails if you don't answer the
questions I pose to you, I really don't have time for this,

Cheers,

Josh


>
>Some one has told me that I can use SetWindowText API function but I should
>pass the handle of the edit I want to insert data or I can use SendMessage
>API of COM but I don't know how to use them in JAWIN
>
>Josh Passenger <[email protected]> wrote:Hi Ally,
>
>I think I understood that bit fine, but what is/are the native
>application(s)?
>
>Are these things you have the source code for? Are they written in VB or
>are they exposed as COM components?
>
>I don't think there is any code that will ever insert text into a focussed
>text field in any arbitrary windows application.
>
>My suggestion was probably only suitable if you had the source code to the
>applications that you wanted to interface to and could make them listen for
>UDP packets or watch a directory for files representing events from the
>Java
>smart card reader.
>
>If you don't have the source code and the native apps don't have type
>libraries or don't have published APIs then you are probably out of luck.
>
>The title of your email indicates that you might be interested in using
>copy
>and paste and thus the clip board. I have previously integrated a Java
>swing application with an Access database application by writing a row id
>to
>the windows clipboard with a prefix eg:
>
>SmartCardId:675454BT65
>
>Then in the Access application, a timer was set up to poll the clip baord
>and look to see if it started with: 'SmartCardId:'
>
>Then the id was extracted from the clipboard string and work done to change
>the UI, in your case, this would load a record for a student. This might
>be another low tech solution to your problem. using the clipbaord is not
>secure and getting access to another students account might be as easy as
>copying an id to the clipboard from notepad so be careful. if you decide to
>use the clipbaord, consider some form of encryption of the id while it is
>on
>the clipboard, hashing in some expiry timestamp or something to make sure
>it
>can't just be replayed
>
>Josh
>
> >
> >Thanks Josh,
> >I think you didn't understand my problem, my problem is that I need data
>to
> >be placed at the possition of cursor in the native application which has
> >focus like barcode reader does. So its means I want my application to act
> >as input device. The real situation is that I am working with University
>of
> >Dar es salaam, I have introduced the use of smartcard at the campus so
>now
> >we want to integrate the exisiting Library application with this
>smartcard
> >application. Library system takes an input by barcode reader and this
>input
> >is the student identification number, Now we want the student's
> >identification number to come direct from the chip of smartcard.
> >In coming time will integrate all the University application with
>smartcard
> >through this way.
> >
> >Josh Passenger wrote:
> >Hi Ally,
> >
> >Your requirements are somewhat vague and the answer to your problem may
> >very
> >well not be in the use of Jawin to bridge java to native code.
> >
> >The generic type of interaction you discuss where the applications reside
> >locally might be better solved with a socket based approach, where the
>java
> >app that interfaces the smart card broadcasts via UDP the announcement
>that
> >something has happened on the card reader.
> >
> >The native applications could listen for the specified UDP packets and
> >respond accordingly.
> >
> >TCPIP network based approaches have been used for years to bridge
> >incompatible software components, nowadays, SOAP and webservices are just
>a
> >prettying up of these with a standard communication framework and syntax.
> >
> >A lower tech solution might involve dropping a file in a directory and
> >using
> >something like the file system watcher functionality available under c#
>to
> >react when the file is dropped from the native app?
> >
> >Jawin is about bridging java to existing COM components (and DLLs).
>Unless
> >you already have a COM component system (sounds like you don't) then
> >probably best to put something simple and reliable in yourself.
> >
> >COM is just plain ugly anyway =]
> >
> >Josh
> >
> >
> > >
> > > I still remaind every one in the group to help me.
> > >
> > >I need help on how can I write some code using jawin to do the
>following
> > >task,
> > >I need my code to act as barcode reader driver to take data from java
> > >application to native application on position of cursor.
> > >
> > >This is a scenario:
> > >some number will be stored in the javacard smartcard. when card
>inserted
> > >take this number from the card to java application and then to native
> > >application which currently has fucus.java application will be all the
> > >time running on the back like any service in the system.
> > >I managed to do all task except one of transferring data from java to
>any
> > >native application.
> > >I want my application to replace barcode reader apart from getting
>input
> > >from the barcode in put will come from the card.
> > >
> > >
> > >
> > >
> > >---------------------------------
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> >
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>
>
>Ali A. Rwegasira
>Software Engineer, Jedi Development Limited
>System Administrator, Smartcampus - University of Dar es salaam
>P.O Box 65351
>Tel: +255 (022) 2136601, +255 (022) 2410179
>Fax: +255 (022) 2136602
>Mobile: +255744274884
>Other email: [email protected]
>Dar es salaam
>Tanzania
>
>
>
>
>
>
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