How to allow printing button to print your bar code direct to the printer in yii?

If you have bar code generator extension from yii http://www.yiiframework.com/extension/barcodegenerator/ already doing some configuration on it. Then the next step is to print the image when you access this link http://localhost/sampleapps/barcodegenerator/generatebarcode&code=<?php echo $_IDUSER; ?>

First of all you will have your printing button defined as

$this->widget('zii.widgets.jui.CJuiButton', array(
                            'buttonType'=>'button',
                            'name'=>'btnPrint',
                            'value'=>'1',
                            'caption'=>'Print',
                            'onclick'=>'js:function(){
                                window.location="index.php r=controller/action&barcodeno='.$item->barcodeno.'";
                                return false;
                                }',
                            'htmlOptions'=>array(
                                'style'=>'color:#28409A;'
                            ),

                            ));

then to that page which you will be going to display your bar code, it will have an image like this

<div id="div1">
   
<img src="<?php echo Yii::app()->request->baseUrl.'/index.php?r=barcodegenerator/generatebarcode&code='.$item->barcodeno;?>">

</div>

then you will put this code above your div


<script type="text/javascript">
printDivCSS = new String ('<link href="myprintstyle.css" rel="stylesheet" type="text/css">')
    window.onload = function printDiv() {
    window.frames["print_frame"].document.body.innerHTML=printDivCSS + document.getElementById('div1').innerHTML
    window.frames["print_frame"].window.focus()
    window.frames["print_frame"].window.print()
}


</script>
<iframe name=print_frame width=0 height=0 frameborder=0 src=about:blank></iframe>

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