Pointers in PowerBuilder?

Hello there,

I am considerably new in PowerBuilder and would like to dynamically resize a GroupBox whenever the controls in the GroupBox resize.  In order to do so, I would like to create a list of GroupBoxes with a 'pointer' to the left-topmost, left-bottommost, right-topmost and right-bottommost controls before the controls are being resized and re-positioned.

But after Googl-ing for some time, I am unable to find anything except for REF used in functions.

Is there any way to do something similar to the following in PowerBuilder?

In C++:

{Codes}

// my first pointer
#include <iostream>
usingnamespace std;

int main ()
{
  int firstvalue, secondvalue;
  int * mypointer;

  mypointer = &firstvalue;
  *mypointer = 10;
  mypointer = &secondvalue;
  *mypointer = 20;
  cout << "firstvalue is "<< firstvalue << '\n';
  cout << "secondvalue is "<< secondvalue << '\n';
  return 0;
}

{Output}

firstvalue is 10
secondvalue is 20

Thank you in advance.