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  2. RPG400-L
  3. November 2023

RE: INFDS()

I've never understood why the cursor position should be defined as a 2 Position Value.
Position 370 represents the row in Hex Format and Position 371 the column also in Hex format. So when defining Position 370 as Uns(3) and and 371 also as Uns(3). It is easy to check and set the cursor position row and column easily. Without any strange values and also without any complex calculations such as dividing through 256 and then taking the remaining.

Mit freundlichen Grüßen / Best regards

Birgitta Hauser
Modernization – Education – Consulting on IBM i

IBM Champion since 2020

"Shoot for the moon, even if you miss, you'll land among the stars." (Les Brown)
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-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Mark Waterbury
Sent: Wednesday, 1 November 2023 15:50
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: INFDS()

It may help (someone) to know that this is how the cursor location works in the 5250 data streams. It's all EBCDIC, all hexadecimal ... :-)

On Wednesday, November 1, 2023 at 10:43:01 AM EDT, Daniel Gross <daniel@xxxxxxxx> wrote:

Hi Douglas,

your are right - but you have to think in hexadecimal. 2 bytes in hex are like 0x0000 to 0xFFFF. So you have to convert the decimal values to hex:

1282 => 0x0502 => 0x05 / 0x02 => Line 5 Column 2
1290 => 0x050A => 0x05 / 0x0A => Line 5 Column 10

HTH
Daniel


Am 01.11.2023 um 14:52 schrieb DEnglander--- via RPG400-L <rpg400-l@xxxxxxxxxxxxxxxxxx>:

I have an RPG program that has a WORKSTN file defined with keyword
INFDS(DSPDS)

Here is that DS:

ddspds dS
dcursorloc 370 371b 0

Here is one example of where CURSORLOC is referenced:

c when CsrLoc = 'S1NUMBER' or c
cursorloc > 1282 and cursorloc < 1290

Is this code saying "If the cursor is on field S1NUMBER or it is on
row 12, positions 83 through 89 then....

If not, what does the number range of CURSORLOC represent? I can't
seem to find anywhere online where this field is defined as a numeric range.
Normally it shows as position 370 is the Hex of the cursor row
location and 371 is the Hex value of the cursor column location.

Any idea what is range represents? There other ranges within this
SELECT block, but CURSORLOC is only referenced in this SELECT block.


Douglas Englander
Senior Programmer/Analyst
The C. D. Hartnett Company ? Corporate Offices
1-817-594-3813 ext. 1636

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