Thomas, We have a SetBranchStatus and not a SetLeafStatus for the following reason. Suppose a branch "mybranch" containing 2 leaves "leaf1" and 'leaf2" What would be the result of SetLeafStatus("leaf1",1); SetLeafStatus("leaf2",0); As I explained in a previous mail, the I/O is at the branch level. There is one buffer per branch, not a buffer per leaf. Rene Brun Thomas Bretz wrote: > > Hi Rene, > > thanks for the fast and good answer. That was exactly what I was > missing. > > But let me ask something about it: > Why do I have to call SetBranchStatus instead of calling something like > SetLeafStatus. Aren't these variables leaves? > > Thanks again, > Thomas.
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