int $windowId;

int $controlId; 

int $rect[4];

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

$windowId = `createWindow "MyWindow"`;

// Specify the size of the Control - 100 units wide

$rect[0] = 20;  // Left

$rect[1] = 20;  // Top

$rect[2] = 120; // Right

$rect[3] = 40;  // Bottom

// Create the Control on the Window, passing

// in the Window Id of the User Window we 

// just created. Make the Check Box tri-state and set its text

$controlId = `createCheckBox $windowId -triState -text "Check Me!" -pos $rect`;