S7 Pointers

Hi All,

I am new to S7 and STL and am confused by the following code..

L P##Job
LAR1
L W [AR1,P#0.0]
T #Job_DB
L D [AR1,P#2.0]
T #Job_Ptr

I assume W [AR1,P#0.0] loads the DB number that the Job pointer is pointing to but not sure about D [AR1,P#2.0] as it seems to be returning a the job pointer (which is what we started with isn't it ?).

Can someone tell me the structure of a pointer (ie. P#0.0 is DBNum etc).

Thanks
Geoff

Structure as follows:

L W[AR1,P#0.0] //db number
L D[AR1,P#2.0] //area pointer

For example, the job_ptr may point to an area that contains several elements of data.

Here's a quick example - by passing in a pointer you have complete read/write access to the area concerned.

Thank you for the reply and example, it makes a lot more sense now.