qtlist Query

[ebsaith]

I have x, y variables that are constantly changing
Only when user clicks a button will the x, y variable at that time be stored in array

Created button & linking to function ->no problem

not sure how to go about the array part
this is my code:
.h

private:    
    QList<int> ArrayX;
    QList<int> ArrayY;

private:    
    QList<int> ArrayX;
    QList<int> ArrayY;

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void my_qlabel::transferValues()
{
    //counter initialised to 0 in constructor
    Counter += 1;
    ArrayX[Counter] = x;
    ArrayY[Counter] = y;
}

void my_qlabel::transferValues()
{
    //counter initialised to 0 in constructor
    Counter += 1;
    ArrayX[Counter] = x;
    ArrayY[Counter] = y;
}

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Is the array Declared properly (array Has to be dynamic as it can increase as many time user pushes button)
Do I have to use the .append???

please provide me with sample code on qlist if possible?

Thanks