Need Help. Going Insane

I have an MDI application, been developed in C++ Builder. On each child form there is an image object.
To cycle through the child forms I use a For loop.
My problem is this.
Going through the loop I can only access properties, methods and events of the form and NOT the objects on the form. How can I access the objects on the form.

Code:

---

for (int index = MDIChildCount - 1; index >= 0; index--)
{
  something = MDIChildren[index]............... STUCK............?????
}

---

What I am looking for is the pixel array of an image object on the form.
I would be greatful of any suggestions or input.