[SOLVED]Read specific leaf from a tree w/o reading all leafs

I want to read a specific leave from a tree.

I can do this with:

myTREE.GetEvent(i)
myvalue = myLEAF.GetValue()

But I think GetEvent reads the whole tree. Is there a way to read the leaf by avoiding reading whole tree?

Instead of:

myTREE.GetEvent(i) myvalue = myLEAF.GetValue()

myLEAF->GetBranch()->GetEntry(i) myvalue = myLEAF->GetValue()
Rene