GD Image Creation - align problem

[Canman2005]

Hi all

 

I have the following

 

<?php
header ("Content-type: image/png"); 
$img_handle = @imagecreatetruecolor (21, 120) or die ("Cannot Create image"); 
$back_color = ImageColorAllocate ($img_handle, 0, 0, 0); 
$txt_color = ImageColorAllocate ($img_handle, 255, 255, 255); 
ImageStringUp ($img_handle, 4, 1, 100, $_GET['text'], $txt_color); 
ImagePng ($img_handle); 
ImageDestroy($img_handle);
?>

 

This creates a vertical imate with text on it.

 

At the moment the size of the GD image is generated using

 

$img_handle = @imagecreatetruecolor (21, 120) or die ("Cannot Create image"); 

 

Is there anyway to give it an auto height rather than 120px high?

 

Thanks

 

Dave

[Canman2005]

If not auto sizing, is there anyway to position the text at the top of the image rather than the starting position being at the bottom? If that makes sense

[Canman2005]

Anyone?