How to get the path of a V-Ray output image by mel?

[bigbossfr]

Could we maybe add a feature request to get a function for this that always work? I currently do as bigbossfr but sometimes get incorrect results.

-- Erik

I would be happy to fix my code ^^

[flat]

It is used by the own program which adds any strings to an output folder by a Sparate-folders feature.
http://forums.chaosgroup.com/showthread.php?88630
Can it do in the feature of VRay?