Could you tell me the minimum program which reads a source segment and a target segment?

Hello,

I started making of a new application.
I thought I consulted an application of the sample("Leo.CleanUpTasks-master") you advised before and "Sdl.Verification.Sdk.EditAndApplyChanges.MessageUI".
But these applications are difficult for me because there are many files and C# is difficult for me.
The data I need are Source segment and Target segment only(in Editor view) which are being translated at present.
Could you tell me the minimum program which reads these data or a more simple sample?
When getting these data, writing a processing program seems easy.

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