OScope__SetupChannel (ul_pbar_graphics)

 *  Synopsis:
 *    #include <ul_pbar_graphics:oscope.h>
 *
 *    TOScope__Result OScope__SetupChannel( int channel, const char *channelName,
 *                                          int channelColor,
 *                                          TOScope__Data yMinimum,
 *                                          TOScope__Data yMaximum )
 *
 *  Function intent:
 *    OScope__SetupChannel() provides a mechanism for setting the vertical
 *    axis range and displayed channel title.  If OScope__SetupChannel()
 *    is called with a channelName parameter of NULL the default lable string
 *    of "Channel #n" will be used.
 *  Function parameters:
 *    int               channel         channel number being setup
 *    char              *channelName    pointer to channel label string
 *    int               color           color used to plot trace
 *    TOScope__Data  yMinimum        minimum vertical axis value
 *    TOScope__Data  yMaximum        maximum vertical axis value
 *  Function return value:
 *    CBS_OK            success
 *    ~CBS_OK           OScope__DisplayScreen() already called
 *    CBS_RANGE         channel number out of range