How can I log the callstack with JCL without using raise exception

Question

Background

We have a problem that sometimes the grid in Devexpress raise exception "Raised EConvertError: Cannot assign a nil to a TFont".

But to trace the real cause of this we have changed Font in cxEdit to be a public property instead with a get and set method. Here I want to log the callstack.

My question

Normally JCL is used to log callstacks when exceptions appear. But how can I log the callstack without using raise exception and show a dialog for the user about this ?

I have found the lines:

var
  GlobalStackList: TJclGlobalStackList;

in JclDebug but I fail to use it. If someone have a example how to get the callstack I would be happy.

Regards Roland Bengtsson

Not a full duplicate, but you need the same info as answered under [Need a way to periodically log the call stack/stack trace for EVERY method/procedure/function called](http://stackoverflow.com/questions/2326980/need-a-way-to-periodically-log-the-call-stack-stack-trace-for-every-method-proced) — Jeroen Wiert Pluimers, Mar 21 '11 at 08:04
This is not a exact duplicate of another question, it's specific to JCL. The other question mentioned ended up wanting a call trace and not a call stack. — Robert Love, Mar 22 '11 at 04:34

score 9 · Accepted Answer · edited May 23 '17 at 11:52

9

This answer shows how to do it with JCL by calling JclCreateStackList.

edited May 23 '17 at 11:52

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answered Mar 21 '11 at 07:56

Lars Truijens

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How can I log the callstack with JCL without using raise exception

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