Reading the waveform Measurement using Instrument driver R&S OSC RTM3004

[Faizan_habib]

Hi,

I am communicating with Rohde&Schwarz RTM3004 Oscilloscope using Instrument Driver. I want to read a waveform measurement using function attached in the SS. But this function always read the measurement of channel i select manually (after disconnecting OSC) as source. How can I configure it in my code to read the channel which I want. For example, I have tried to configure Channel 2 and then I call this fuction but if I have selected the Channel 1 manually it will read the measurement of channel 1. What I am missing here ? What would the correct way here ?

In short : How can I specify the channel to read the measurement? 

Regards,
Faizan