int $windowId;

int $controlId;

int $indices[];

// First create a User Window to place the Control on

$windowId = `createWindow "MyWindow"`;

// Create the User Control on the Window. 

$controlId = `createListBox $windowId -multi`;

// Add some items to the List Box.

addListBoxItem $controlId "Item 1";

addListBoxItem $controlId "Item 2";

addListBoxItem $controlId "Item 3";

// Select the second and third items

selectListBoxItem $controlId 1;

selectListBoxItem $controlId 2;

// Get the selected items

$indices = `getListBoxSelItems $controlId`;

print $indices;