canvas does not allow printing
I have an Intraweb application that uses Waler addon to output many reports
in pdf format. It is working like a charm.
This morning, one of the report was gving this exception in the browser
window: "canvas does not allow printing". All of the other reports were ok.
Testing the report on my test environment, it worked. I simply stopped and
restarted the IIS service and the report was working correctly.
Since my ISAPI application is multithreaded by nature, is it possible that
something got screwed up with ReportBuilder? If so, what should I check to
be sure it doesn't come up again. Is there some things to do to make sure
that RB behave well in a multi thread environment?
Using Delphi 7 and RB 7.02.
in pdf format. It is working like a charm.
This morning, one of the report was gving this exception in the browser
window: "canvas does not allow printing". All of the other reports were ok.
Testing the report on my test environment, it worked. I simply stopped and
restarted the IIS service and the report was working correctly.
Since my ISAPI application is multithreaded by nature, is it possible that
something got screwed up with ReportBuilder? If so, what should I check to
be sure it doesn't come up again. Is there some things to do to make sure
that RB behave well in a multi thread environment?
Using Delphi 7 and RB 7.02.
This discussion has been closed.
Comments
This error could mean a number of things... most likely your application is
having difficulty finding the printer driver handle or you have a resource
leak somewhere. ReportBuilder 7 is completely thread safe so this is
probably not the problem. I would suggest using a QA tool with your
application to see if there is a memory/resource leak somewhere. Then be
sure you are using the latest versions of your video and printer drivers.
--
Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com