vprintf

Description:

[ CCode ( vfunc_name = "Vprintf" ) ]
public virtual off_t vprintf (string format, va_list args)

Output args to this using the format string format, similar to < citerefentry><refentrytitle>vprintf</refentrytitle> <manvolnum>3</manvolnum></citerefentry>.

Parameters:

this	A Output
format	The printf-style format string
args	the arguments for `format`

Returns:

number of bytes printed, a negative value if not successful