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Re: Question and problems around TabCtrl [message #27564 is a reply to message #27559]

Fri, 23 July 2010 11:54

mubeta
Messages: 77
Registered: October 2006

Member

I found the cause, but I need a long time for follow all the codes:

So:
After add an tab, I also set a callback to WhenSet:

tab.WhenSet << THISBACK(foo);

foo get information from tab, so, when tab.Reset() is destroing the last one, (tab.Reset() method call again WhenSet() before to return), I get the crash.

WhenSet() is called again, at the second time adding loop, in this case it's really dangerous, because all the need vars are not ready.

So, in fact:
First step: adding tabs all is ok, because WhenSet is empty.
Second step: assign a callback to WhenSet.
Third step: resetting the tab result in a crash because Reset() also call WhenSet(), and in MY CASE is not good.
Third step: adding new tabs result in a crash becase WhenSet is assigned but my vars are not ready.

So, now the problem is: how to remove the WhenSet callback??
tab.WhenSet << 0; (compiler error)
tab.WhneSet = 0; (compiler error)
tab.WhenSet << CNULL; (compiler error)
tab.WhenSet << Callback::Empty(); (ok for compiler, but nothing change in the application. the callback in fact is not cleared).

uff.

I only need to be able to remove the WhenSet callback some times.

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