Creation of new object link for DMS
i have searched a lot about Creation of new object link for DMS on internet .
and all replies focus on that documentation :
1. Program two screens for the following module pools for the SAP object that is to be linked additionally:
The process logic must be according to that of screen 0204 in program SAPLCV00 and must not be changed.
2. Create the function module OBJECT_CHECK_XXXX (XXXX = name of the SAP object).
i need to know how to implement that in more detailed step by step
as i know DMS and abap also.