Passing an integer to a slot

[redkite]

Instead of using a QSignalMapper, which I think don't suit you(the int is not always the same, you will need to call setMapping each time...), I suggest you simply create an additional slot (void) which will call startIO(currentFreq1). (and simply put startIO private)

So connect the QPushButton::clicked() to the additional slot:

QObject::connect(taStartPB, SIGNAL( clicked() ), this, SLOT(additionalSlot());

QObject::connect(taStartPB, SIGNAL( clicked() ), this, SLOT(additionalSlot());

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Then you can call startIO(int) :

void ConfigurationPage::additionalSlot()
{
    int currentFreq1 = frequency_ch1_SB->value();
    startIO(currentFreq1)
}

void ConfigurationPage::additionalSlot()
{
    int currentFreq1 = frequency_ch1_SB->value();
    startIO(currentFreq1)
}

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I think it 's a straightforward way, isn't it?

Hope to be useful...