OScope__AnnotateText (ul_pbar_graphics)

 *  Synopsis:
 *    #include <ul_pbar_graphics:oscope.h>
 *
 *    TOScope__Result OScope__AnnotateText( int row, int col, const char *text,
 *                                          int color )
 *
 *  Function intent:
 *    Write a text string to Annotation Window at a specified [row, col] in a
 *    specified color.
 *  Function parameters:
 *    int       row     annotation window row at which to display text
 *    int       col     annotation window column at which to display text
 *    char      *text   pointer to the text string to display
 *    int       color   color with which the text string is displayed
 *  Function return value:
 *    CBS_OK            success
 *    CBS_NOSETUP       OScope__EnableAnnotation() has not been called
 *    else              wn_xxx() function error occured