How to handle on SMG$_BATSTIPRO

[Hans Adriaanse]

Hello,
I am writing an application with use of SMG routines. For a reasonable update of the sreen I use SMG$BEGIN_PASTEBOARD_UPDATE and when the update is ready I use SMG$END_PASTEBOARD_UPDATE. But now I receive as a return code for the last function SMG$_BATSTIPRO. According to the manual this means the function acted correctly, but batching is still in progress.

I cannot find how to react on this. My application fails because a read function cannot be done while batching is active.

Who has experience with this fenomena ??

Thanks in advance,
Hans

[Wim Van den Wyngaert · Accepted solution]

I would say that you nested BEGINS and when the END is not the last END expected, you get this warning.

Idem for BATWASOFF that indicates an END without BEGIN.

Wim

[Hans Adriaanse]

Hi Wim,

No that is not the case. I checked the begin_pasteboard_update and that returned SS$_NORMAL. In case an update is already in progress, it returns SMG$_BATWASON.

So that is not the problem. By the way begin/end_update_pasteboard maintains an internal counter to avoid this problem.

Hans

[Ian Miller.]

looking around using various internet searches a common approach appears to be to loop waiting until this condition is no longer reported.

while (smg$end_pasteboard_update(&pid) == SMG$_BATSTIPRO)
;

An alternative approach can be seen in newsmenu.c in

http://www.google.com/codesearch/url?hl=en&q=show:06WJit5Q7Kw:HfIaQJpadWQ&sa=N&ct=rpc&cs_p=http://vmsone.com/~decuslib/languageandtools/lt93a/anunews/news_v61-beta8.zip

[Wim Van den Wyngaert]

BATSTIPRO, batching is still in progress
Facility: SMG, Screen Management Facility
Explanation: A user tried to end batching (updating) with a call to
SMG$END_DISPLAY_UPDATE or SMG$END_PASTEBOARD_UPDATE.

This action did not terminate batching because there were more calls to begin
batching than to end batching.

User Action: None. An outer level routine may still need batching to be in
effect.

[Hans Adriaanse]

It is a matter of counting inner and outer calls to the function. Your remarks made me do this and finding the solution.

Thanx