Custom textfield cursor/caret

Hi there,

Is there any way to create custom textfield cursor/caret? I currently have a textfield (tfFocus) with a blinking caret that works just fine using the following code:

 
tfFocus.stage.focus = tfFocus;  
tfFocus.setSelection( tfFocus.length , tfFocus.length);

However, I’d like to change the caret to a block instead of a line. Any ideas?!

Much appreciated!