Binary context of File upload

hi,

In file upload UI element we have a property called <b>Data</b> which is of binary data type.When I upload any file and display the value present in the binary context it gives a valu eg:B@1f15ee0 .How can i see the binary values in the context ?

can i send this binary values to an rfc?

If so what is the data type of the import parameter of RFC?

I have to uploaded file from webdynpro application to R3 system through RFC.What is the datatype of the import parameters...?

Please help.........

Thanks in Advance,

shami.