void Watcher::Zero ( Option_t *  hname = "pool", Option_t *  binning = ""  )

virtualinherited

watch the current frame ... to be overwritten by the watcher

Reset the histograms

The first argument is the histogram or the collection of histograms (pool/tag) to be Reset to 0. Widcards could be given to applied to several histograms at the same time.

The second argument, if given is to modified the definition of the histogram i.e. the binning, min and max. with the followwing format:
binx minx miny [biny miny maxy]

In case a collection is used, it applies the same binning to all the histograms

Reimplemented in Gw::LoopControl, RateDisplay, RateDisplay, TimeStampWatcher, TimeStampWatcher, TimeStampWatcher, and Gw::FrameDispatcher.

Definition at line 617 of file Watchers.cpp.