tex coords problem


I have the following problem:
I need to export the tex coordinates of a mesh in the way that every vertex has only 1 pair of tex coords.
When I try to export the coords with vertex.uvco.x/y I always get 0 as the result.
I found out that this does not work because tex coords are saved per face and not per vertex but I must have them per vertex for my exporter so what can I do
to solve this problem?

thx in advance