[Qt-interest] problem with signal/slot

[Robert Escott]

This is normally happens because MOC is not being run to generate the
'moc_myheader.cpp' file, or being rerun, or the MOC output is not being
linked into your final executable. It's not a problem with your coding.
Check your compilation settings.

-----Original Message-----
From: qt-interest-bounces+robert=binarylogic.co.za at qt.nokia.com
[mailto:qt-interest-bounces+robert=binarylogic.co.za at qt.nokia.com] On Behalf
Of AK
Sent: 21 December 2010 11:04
To: Mahendra G.R
Cc: qt-interest at trolltech.com
Subject: Re: [Qt-interest] problem with signal/slot

Perhaps you forgot to call the Base class constructor.
Rest of the code looks perfect to me.

On Wed, Dec 8, 2010 at 10:05 PM, Mahendra G.R <mahendra at mahendragr.com>
wrote:
> Hi guys,
>
> i have a small problem with signal/slot, though i have defined my slot
> method, i get runtime message saying   Object::connect: No such slot
> CustomScene::updateAlphaValue()  , i have defined the method
> updateAlphaValue() in the customScene class
>
> this is my code :
>
> class CustomScene : public QGraphicsScene
> {
>
>     Q_OBJECT
>     public:
>         CustomScene()
>         {
>               alphaSlider = new QSlider(Qt::Horizontal);
>             alphaSlider->setTickInterval(1);
>             alphaSlider->setRange(0,255);
>             alphaSlider->setMinimumSize(105,20);
>             alphaSlider->move(6,222);
>             alphaSlider->setToolTip("Opacity");
>             connect( alphaSlider, SIGNAL(valueChanged(int)),
> SLOT(updateAlphaValue()) );
>          //some other stuff
>      }
>
> public slots :
>             void updateAlphaValue();
>
> };
> --
> http://www.mahendragr.com
>
> _______________________________________________
> Qt-interest mailing list
> Qt-interest at trolltech.com
> http://lists.trolltech.com/mailman/listinfo/qt-interest
>
>
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