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  3. April 2018

Re: Allocating a display file

In the rare instance where something like this is needed I have used a data area coupled with USROPN as a lock.  If the data area exists then the DSPF can not be opened.  If the data area doesn't exist, create it and also open the dspf.



On 4/2/2018 10:53 AM, Joe Pluta wrote:
I'm sure this is nothing new, and probably goes back to the S/38 days, but it's new to me, so...

I just tried to allocate a display file.  I wanted to make sure nobody had it before I change the display file and its underlying program.  Lo and behold I get a CPF0894 error which basically says I can't allocate a display file.  It certainly seems this limitation has been around for a very long time, but I've never run into it before.

I'm just wondering if anybody else has ever felt a need to exclusively lock a display file and if so, how they got around this particular error.

Thanks!



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