Re: [Plib-users] legend update

[Stephen J B. <sj...@li...>]

> void sliderCB( puObject *sli) {
>
>    float value;
>    char sliText[4];
>
>    slicb->getValue(&value);
>    sprintf(sliText, "%.2f", value);
>    cout << sliText << endl; // this output is *exactly* what I need
>
>    slicb->setLegend(sliText); // non-sense chars on the legend :(
>    ...
> }
>
> No matter what I do to try and reformat the string (with sprintf),
> prior to sending it on the legend, I get on my legend some strange
> characters. What am I possibly doing wrong?
> Can somebody see my mistake above?

Someone already (correctly) pointed out that sliText is a local variable
(which is certainly a problem) - but it's also not large enough.

The '%.2f' format will generate things like '0.01' - four characters
plus a '\0' byte - making five characters in all.  Hence, sliText
needs to have *AT LEAST* five elements - not four as you declared it.

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Steve Baker                      (817)619-2657 (Vox/Vox-Mail)
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