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Reading data from a screen - Screen capture

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puneet478



Joined: 03 Jan 2006
Posts: 17
Location: Bangalore india

Posted: Thu Jul 10, 2008 6:20 pm    Post subject: Reading data from a screen - Screen capture  

Hi all,

I would like to know if there is a way by which i can read/catpure some specific from a static screen.

I mean can i read data at some specific position (pixel) using a REXX function or some other function?

How to do it if -
(1) Screen is static (no input fields)
(2) Screen has some editable fields.

Any help will be greatly appreicated.

Regards,
Puneet
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superk



Joined: 26 Apr 2004
Posts: 3265
Location: Charlotte,NC USA

Posted: Thu Jul 10, 2008 6:28 pm    Post subject: Reply to: Reading data from a screen - Screen capture  

I recommend the use of the Open Systems Protocol Interface (OSPI) product from BMC. It allows you to code, in REXX or CLIST, programs that read and write data directly to and from a 3270-terminal session.

Other than that, for ISPF dialogs the variable ZSCREENI contains the logical screen data.
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puneet478



Joined: 03 Jan 2006
Posts: 17
Location: Bangalore india

Posted: Thu Jul 10, 2008 6:44 pm    Post subject:  

Hi Superk,

Thank you so much for such a quick reply. After i am on right panel (using ZPANELID), i can reach the screen where i need to capture the data. Now, if i use ZSCREENI, would it capture all the data on that screen or just the editable one?

What do you mean by Logical data here?

Similarly, let us say, on a specific screen, I place the cursor (using program) on a particular field. How can i capture the value of that field?

My requirement is -

I run a macro (query) and get the output displayed in the form of a screen (ISPF). If i could dump the contents of that screen in a file, my work will be done as i will be able to parse data in that file (but i can't parse a static screen).

Regards,
Puneet
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expat



Joined: 14 Mar 2007
Posts: 3509
Location: Brussels once more ...

Posted: Thu Jul 10, 2008 6:51 pm    Post subject:  

Quote: I run a macro (query) and get the output displayed in the form of a screen (ISPF). If i could dump the contents of that screen in a file, my work will be done as i will be able to parse data in that file (but i can't parse a static screen).
If you use variables to display the output then they are already defined to ISPF, or if the results of your macro are in a dataset, then use the dataset.
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puneet478



Joined: 03 Jan 2006
Posts: 17
Location: Bangalore india

Posted: Thu Jul 10, 2008 6:56 pm    Post subject:  

I think i did not put it correctly. If i know the variables, my problem is solved.

Based on my query, a system screen is displayed. I can have my cursor come to right position but i dont know how to read next few bytes from that location.

In simple words, I want to capture data on a mainframe screen and put it in a PS.

Regards,
Puneet
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expat



Joined: 14 Mar 2007
Posts: 3509
Location: Brussels once more ...

Posted: Thu Jul 10, 2008 7:05 pm    Post subject:  

OK, lets get basic here ..................

What type of query are you processing ?
Where does the output go ?
What do you mean by a system screen ?
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enrico-sorichetti



Joined: 14 Mar 2007
Posts: 3082
Location: italy

Posted: Thu Jul 10, 2008 7:16 pm    Post subject: Reply to: Reading data from a screen - Screen capture  

did You check

http://www.sillysot.com/mvs/index.htm?vcursor.htm
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puneet478



Joined: 03 Jan 2006
Posts: 17
Location: Bangalore india

Posted: Thu Jul 10, 2008 7:16 pm    Post subject:  

Hi Expat,

I am not sure how to add screen prints here otherwise that would have made it lot easier for me to explain the problem.

-> I am doing some data extraction (not any sql query but by giving some parameters on a ISPF panel)

-> The result is displayed in the form of screen (another ISPF screen, non-editable)

-> I want to copy the content of this screen in a PS.

Hope it is clear now.

Regards,
Puneet
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enrico-sorichetti



Joined: 14 Mar 2007
Posts: 3082
Location: italy

Posted: Thu Jul 10, 2008 7:19 pm    Post subject: Reply to: Reading data from a screen - Screen capture  

Quote: -> I am doing some data extraction (not any sql query but by giving some parameters on a ISPF panel)

-> The result is displayed in the form of screen (another ISPF screen, non-editable)

do You have control of the application doing the data mangling... ?

modify it in order to write also to a PS
usually third parties applications provide away of saving somewhere the results of a query
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expat



Joined: 14 Mar 2007
Posts: 3509
Location: Brussels once more ...

Posted: Thu Jul 10, 2008 7:25 pm    Post subject:  

Or if you enter the PANELID command to find out the name of the 'System' panel being displayed, then look through the source of the panel to see if the data is now displayed from a variable.
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Pedro



Joined: 01 Sep 2006
Posts: 510
Location: work

Posted: Thu Jul 10, 2008 9:26 pm    Post subject: Reply to: Reading data from a screen - Screen capture  

Quote: I am not sure how to add screen prints here

When you are posting a reply, use the button labeled 'code', then paste in your text, followed by then ending 'code'.
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