int $windowId;

int $groupId; 

int $topForm;

int $controlId;

// First create a user window to place the Control on

$windowId = `createWindow "MyWindow"`;

// Get the top level form

$topForm = `getTopLevelForm $windowId`;

// Create the group box, adding it as a child of the

// top level form.

$groupId = `createGroupBox $windowId -form $topForm-text "Group Box"`;

setControlAnchor $groupId "top" "top" 0;

setControlAnchor $groupId "left" "left" 0;

setControlAnchor $groupId "right" "right" 0;  

// the length of the group box

$controlId = `createTextBox $windowId -text "Text Box" -form $groupId`; 

// Anchor it

setControlAnchor $controlId "top" "top" 20;

setControlAnchor $controlId "left" "left" 20; 

setControlAnchor $controlId "right" "right" 20; 

// Now, call layoutForm, which will do the managing of the controls

// under the form

layoutForm $topForm;