Custom Attributes on Shapes ( Writer)?

[jianlizhao]

Hello my friend:

User Defined Attributes in OpenOffice.org as below:

userAttrs = oShape.getPropertyValue( "UserDefinedAttributes" )
myAttr = uno.createUnoStruct( "com.sun.star.xml.AttributeData" )
myAttr.Type = "CDATA"
myAttr.Value = "test"
userAttrs.insertByName( "url", myAttr )
oShape.UserDefinedAttributes = myAttr

my question is
1） myAttr.Value maybe a url.  example:  c:\mystyle.zip 
  or  c:\mystyle.css.
2） If the first one was established。
   What is the file extension type？


Look forward  your reply.
Best Regards!