Get Ole2 object from SOI document object

Method GET_DOCUMENT_HANDLE of  I_OI_DOCUMENT_PROXY
return exporting parameter: HANDLE (structure type CNTL_HANDLE )

CNTL_HANDLE-OBJ has type OBJ_RECORD, same as OLE2_OBJECT in Type group  OLE2.

 OLE2_OBJECT can be used by statement CALL METHOD OF, SET PROPERTY OF, SET PROPERTY OF, Function Module CONTROL_GET_PROPERTY, or Function Module CONTROL_SET_PROPERTY. 

(like in https://scn.sap.com/thread/74462)