in my plugin written by adobe pdf sdk 7.0,i use the JSCreateTextField to write a text box of the first page in special location,and i works well,but when i move the plugin to adobe sdk 9.0,the adobe pdf professional process crashed.

in order to verify this ,i just add the JSCreateTextField code to the plugin sample BasicPlugin,and result told me that there is something different between the sdk from 7 to 9,is that right?i still not found some document describe the difference if exist.

who can help and tell me why?