They perform a \fBwscanw\fR using a variable argument list.
The third argument is a \fIva_list\fR,
a pointer to a list of arguments, as defined in \fB<stdarg.h>\fR.
They perform a \fBwscanw\fR using a variable argument list.
The third argument is a \fIva_list\fR,
a pointer to a list of arguments, as defined in \fB<stdarg.h>\fR.