Can I send a signal with several parameters to a slot with only one parameter?

Hi dudes!

Can I send a signal with several parameters to a slot with only one parameter?
Is this possible:
connect(d, SIGNAL(valueThreeIntegersChanged(int,int,int)), this, SLOT(UpdateSecondInteger(int)));
How can I choose which parameter I send? (Let's say I'd like to send the 2nd param to this slot)


Thanks for help.

Quote:

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Originally Posted by ricardo

Hi dudes!

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Hi

Quote:

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Can I send a signal with several parameters to a slot with only one parameter?
Is this possible:
connect(d, SIGNAL(valueThreeIntegersChanged(int,int,int)), this, SLOT(UpdateSecondInteger(int)));

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Yes, it's possible.

Quote:

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How can I choose which parameter I send? (Let's say I'd like to send the 2nd param to this slot)

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You can't. It will be always the first one. The leftover parameters will be ignored. You can implement an intermediate slot that will call UpdateSecondInteger() with desired parameters, though.

Quote:

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Originally Posted by jpn

You can implement an intermediate slot that will call UpdateSecondInteger() with desired parameters, though.

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Thanks for reply. How can I do it?

I meant something like this:

Code:

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connect(d, SIGNAL(valueThreeIntegersChanged(int,int,int)), this, SLOT(intermediateSlot(int,int,int)));
 
void Foo::intermediateSlot(int a, int b, int c)
{
    Q_UNUSED(a);
    Q_UNUSED(c);
    UpdateSecondInteger(b);
}

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