[Qt-interest] signal mapping on pushbutton signal clicked

[Srdjan Todorovic]

Hi,

2009/3/17 chandrasekar wagmare <sekarwagmare at gmail.com>:

>         QSignalMapper *signalMapper;
>
> in mapping.cpp
>
> /* signal Mapper*/
>
>         mapValue[i] = 2;
>         connect(cicsButton, SIGNAL(clicked()), signalMapper, SLOT(map()));
>
>         signalMapper->setMapping(cicsButton, mapValue[1]);
>
>         connect(signalMapper, SIGNAL(mapped(int)), this,
> SIGNAL(clicked(int)));
>
>         connect(this, SIGNAL(clicked(int)), this, SLOT(changeIndex(int)));
>
>         int mapValue[10];
>
> it compiled perfectly but when i run core dumped
> when i try execute it gives Segmentation fault ....
>
> i dont know where i d
>
> connect(cicsButton, SIGNAL(clicked()), signalMapper, SLOT(map()));
>
> please help .... why in run time it give seg. fault ....

I suggest you start here:

http://en.wikipedia.org/wiki/Segfault

Then web-search for how to debug segfaults. There are going to be
*many* resources for this.

Hope that helps,
Srdjan