qtRoot:
Qt has been expanded via the qtRoot package from Valeri Fine (fine@bnl.gov).
qtRoot provides several useful features integrating ROOT into the Qt framework. In this application, the most wildly use of this features is the TQtWidget. The TQtWidget fuses a ROOT canvas with a QtWidget. A histogram drawn on a TQtWidget will automatically update when the histogram changes, just as a TCanvas will update when the histogram changes.