Notice that there is a very similar callback signature:

sIFniis x IFniis (the correct one)

  This could be causing your problems.

Best,
Scuri


Em seg, 17 de jun de 2019 às 19:39, Johann Philippe via Iup-users <
iup-users@lists.sourceforge.net> escreveu:

> Hello all,
> A small report :
> The "VALUE_EDIT_CB" of the IupMatrix (tested with IupMatrixEx) seems to
> have some kind of issue.
> I'm using it in C++ with the IUP_DECLARE_CALLBACK, IUP_INITCALLBACK and
> IUP_SETCALLBACK (which by the way work very fine for all other callbacks).
> Sometimes, this one works ok. But at some point, it blocked my std output
> stream (i was printing the values of course). Not sure why. I could see
> that it printed some 0 values at startup, and then the output stream was
> blocked for all the application (I couldn't even use cout in another class
> or anything).
>
> Finally I Use the "LEAVEITEM_CB", which is almost the same in my case.
>
> I hope it can help.
>
> Johann
>
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