Selecting a parent constraint's parent

[krank]

Hi. Here's what I'm trying to do:

Object B is parent constrained to object A. I want to be able to select object B and have maya select object A after hitting a button. The furthest I was able to get with MEL was to select only the parent constaint of object B through the use of naming strings (string $constraint = ($sel[0] + "_parentConstraint1") but this is the wrong direction since I want to be able to traverse through the connections to find the constraining parent somehow. Any ideas?

[thnkr]

string $pc[] = listConnections -type parentConstraint;
connectionInfo -sfd  ($pc[0] + ".target[0].targetParentMatrix");

[krank]

Thank you for the info Michiel! I'll try to plug it into my script.

[krank]

I'm able to return "A.parentMatrix[0]" but how is it possible to select the object "A" from that return? It seems I'm just one connection away now.

[joojaa]

select -r ls -o A.parentMatrix[0];

[krank]

Sorry for the late reply, but thanks everyone it works perfectly!