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| Author | Forum: PowerTCP Web for ActiveX Topic: HTTP.post causes an App. Error with a Timeout > 0 |
| Alexandre Archambault From: Montréal, QC Canada Posts: 49 Member Since: 02/27/01 |
posted April 23, 2001 5:03 PM I am trying to use HTTP.Post with a timeout of 0, if I do this I have an Application Error. If I put a Timeout of 1 or greater there's no Application Error. Anyone have an idea of what to do? Thanks |
Tony Priest From: Utica, NY USA Posts: 8466 Member Since: 04/11/00 |
posted April 23, 2001 5:07 PM Do the sample apps have the same problem? Please tell me exactly how to duplicate the behavior with the sample apps. Thanks, Tony Priest Dart Tech Support |
| Alexandre Archambault From: Montréal, QC Canada Posts: 49 Member Since: 02/27/01 |
posted April 24, 2001 10:55 AM I cannot reproduce the problem in the Sample apps. I've even created a small DLL that essentially is a smaller replica of the more complex DLL where the problem is occuring and I'm unable to reproduce this problem in the new DLL. But the original problem persists in the more complex DLL. |
| Tony Priest From: Utica, NY USA Posts: 8466 Member Since: 04/11/00 |
posted April 24, 2001 10:58 AM Sounds like you're getting close to a solution. Keep adding stuff to the working DLL until you find the cause. Tony |
| Alexandre Archambault From: Montréal, QC Canada Posts: 49 Member Since: 02/27/01 |
posted April 24, 2001 2:42 PM I still haven't found why I'm having this problem, this is what I've done to date. Maybe it'll give someone an idea. I've removed everything that is not being used for the POST in the DLL that isn't working. I've removed all library references that I did not need to perform a POST with the HTTP control. And it still generates an Application Error. It works fine if I put a TIMEOUT higher than 0 and it also works if I put a break point right after the post. When I have the break point the code and when I press F5 to resume the code, the post works fine?! The Application Error is happening in both Design and Run Time. I thought that maybe the problem was in the EXE that was calling the DLL, so I wrote a simple (real simple) EXE but the problem persists and the AE is being generated in the DLL and not the calling EXE. Thanks |
| Tony Priest From: Utica, NY USA Posts: 8466 Member Since: 04/11/00 |
posted April 24, 2001 2:47 PM Are you aware that when timeout is set to 0, you are operating asychnchronously? Perhaps you are making another call to the control before the first one has completed? I'm curious, if it works when timeout is greater than 0, why don't you just set the timeout to a working value? Hope this helps! Tony Priest Dart Tech Support |
| Alexandre Archambault From: Montréal, QC Canada Posts: 49 Member Since: 02/27/01 |
posted April 24, 2001 3:27 PM Yes I am aware that a timeout of 0 is async, personnaly I would be happy to put a timeout but the DLL has to be async. OK I've isolated the problem, it's a weird one (imo). This is a generic DLL that has several of the DART controls in it and depending on what your doing different DART controls are being accessed. I'm casting different DART object to a single type Object (Dim objDart as Object). Well up to now this has worked fine with all the Dart Controls. What I decided to do was change the definition of my object just for my test, instead of having objDart as Object I changed it to objDart as Dartweb.http And the Application Error disappeared. Here's an example of what I was doing (if my explination wasn't clear) Old code: Private objDart as Object Private DartFTP as DartFTP.FTP Private DartHTTP as DartWeb.HTTP etc... Set DartHTTP = New DartWeb.HTTP set objDart = DartHTTP ... objDart.Post New Code: Private DartHTTP as DartWeb.HTTP Set DartHTTP = New DartWeb.HTTP ... DartHTTP.Post The new code works fine. |
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