Develop a command line software that uses LLRP toolkit

Dear We need a command line software that uses LLRP toolkit in c++ (ltkcpp) that connect to IMPINJ Speedway R420, read a tag and more: The software can set antenna power (transimision). The software can set antenna gain (reception). The software can set Mode: 0=High Speed 640k bps (fastest speed rate) 1=Hybrid 80k/160k bps (intermediate speed rate) 2=Dense Reader m=4 – max 200 reads/sec 3=Dense Reader m=8 – max 100 reads/sec 4=Dense Reader MaxMiller – max 450 reads/sec Previous experience in LLRP is required. Tks in advance