List coordinetes and diameters of the hole on Face with VB/C# API?

Hi,
I need to get coordinates of the hole centers according to ZERO point which I selected X and Y lines before. 

I mean I need to select desiered X and Y lines than select face. 

 

Is this possible with API from stand alone exe form?

I can start both VB or C#  no problem.. 

 

Regards,

Mucip:)