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Webcam32 - Problem Solving

This page is dedicated to solving problems related to the operation of Webcam32.  Webcam32 is designed to work in many environments with many cameras, many FTP servers and many browsers.  Although rigorously tested, not all possible combinations have been actually tested together, but all are known to work together.

Reporting Problems

Full technical support on Webcam32 is available via E-Mail.  When reporting problems, please include the following information:



Capturing Trace

Webcam32 is designed to be able to capture trace information.  By default, Webcam32 does not capture trace as this would normally slow the operation of the product.  When solving problems, capturing trace can be the best and quickest way to resolve problems.  Trace is enabled within Webcam32 by entering CTRL+T (holding down the CTRL key while pressing T) when the mouse and keyboard focus is within Webcam32.   Once enabled, all subsequent Webcam32 internal operations will be logged to a file called debug.txt created in the directory in which you installed Webcam32.   This directory is
C:\Program Files\Surveyor Corporation\Webcam32 by default.

The following illustrates Webcam32 capturing trace:

Step 1 - Start Trace

Within Webcam32, enter CTRL+T, the "Debug started" dialog confirmation should appear.  Press enter to dispose of the dialog.



Step 2 - Reproduce problem

Reproduce the problem by using Webcam32 in the same manner as before.

Step 3 - Examine trace data

Edit the debug.txt file created in the Webcam32 install directory and examine the trace output

12/07/97 17:51:56 [fff19b73] 0> OS Version: Win95 4.0.950

12/07/97 17:51:56 [fff19b73] 37> Profile name: Software\Surveyor\Webcam32\Profiles\Default

12/07/97 17:51:56 [fff19b73] 0> Version: 4.6.0

12/07/97 17:51:56 [fff19b73] 0> tcpPortSingle: 81

12/07/97 17:51:58 [fff19b73] 1346> Manual upload action triggered

12/07/97 17:51:58 [fff19b73] 53> SignalSend() - waking FTP thread

12/07/97 17:51:58 [fff22f1f] 18> FtpSendThread: FTP Send thread woken! - About to get image

12/07/97 17:51:58 [fff22f1f] 0> GetImage()

12/07/97 17:51:58 [fff19b73] 9> Frame callback

12/07/97 17:51:58 [fff19b73] 2> bpp=24 width=176 height=144 size=76032

12/07/97 17:51:58 [fff19b73] 0> Image is NOT RGB=0 or WindowsDecode

12/07/97 17:51:58 [fff22f1f] 302> Creating JPEG image ...

12/07/97 17:51:58 [fff22f1f] 0> ... Performing Caption ...

12/07/97 17:51:58 [fff22f1f] 69> ... Compressing image

12/07/97 17:51:58 [fff22f1f] 68> FtpSendThread: Image size: 3440

12/07/97 17:51:58 [fff22f1f] 0> SendFile(00A37150, 3440) - Send file over FTP

>12/07/97 17:51:58 [fff22f1f] 0> Creating/opening file Twebcam32.jpg

12/07/97 17:51:59 [fff22f1f] 1261> Writing file data to FTP server

12/07/97 17:52:05 [fff22f1f] 5328> Saving old FTP files

12/07/97 17:52:07 [fff22f1f] 1967> Deleting webcam32.jpg

12/07/97 17:52:07 [fff22f1f] 481> Renaming Twebcam32.jpg to webcam32.jpg

12/07/97 17:52:08 [fff22f1f] 763> ReleaseImage()

12/07/97 17:52:08 [fff19b73] 4> FTP upload complete

...

The debug output is formatted into columns.

1st Column Date of trace record
2nd Column Time of trace record
3rd Column Thread Identifier within Webcam32
4th Column Milliseconds since the last trace record written
5th Column Trace record text

This file may be sent to Webcam32 support at webcam32@surveyor.com for analysis.

When exchanging e-mail discussing a problem or usage question, please ensure that previous emails are also included.  This speeds assistance since the whole history of a problem can be read in the email.

The Webcam32 Help Wizard

Webcam32 now has an online Help Wizard that may assist in problem solving.  The Help Wizard is here.