How to call a tcode with variant using ABAP code?

Hi Experts,

I want to write an ABAP code to call a tcode using an existing variant and it should return the results of that  tcode to the current program.

This tcode is not a custom tcode. it is a standard tcode WE09, and it has a variant ABC.

In the report, i have to call WE09 using ABC variant and should get the results back (Idocs which are resulted in WE09 tcode).

Please help me on this.