copy and paste interface

[andreas.pfeiffer at rainingdata.com]

Hi,

I am new to this list and I do not really know if my question is here on the
right place. Please someone can redirect me if I am wrong here.

Given a developer would like to create an application on which level (x,
window manager, desktop) would he interface to perform cut and paste? If x
is the correct level where exactly is the interface to do so? Is it
somewhere documented?

Thanks in advance.

Kindest regards to you all,

Andreas