c++ - Qt- How to use connect between incompatible signal and slot -

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i trying game. in want call function, function receive point . function should invoked timer's timedout signal. can how achieve this. below required/error code 

point p(a,b);  connect(timer,signal(timedout()),this,startdestruction(p));

can how achieve this?

create method use intermediate slot, this.

point p(a,b); connect(timer, signal(timedout()), this, q);  q() {     startdestruction(this->p) }

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