Slot - Signal with parameter

[Lodhart]

Hi, can you help me, please...

i have..

for(x) ( QPushButton * pb = new QPushButton; ... )

for(x) ( QPushButton * pb = new QPushButton; ... )

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x - is 5x or 15x, ... but when i click on button, how i can know which button was pressed ?..
some example will help me..