Write a formatted text to a file stream.

This function is compatible with the following targets:

ANSI

BeOS

EMB/RTOS

Mac OS

Palm OS

Win32

#include <wchar.h>

int vfwprintf(FILE * file, 

Parameters for this function are:

file	FILE *	The stream being written
format_str	wchar_t*	The format string
arg	va_list	A variable argument list

The vfwprintf() function works identically to the fwprintf() function. Instead of the variable list of arguments that can be passed to fwprintf(), vfwprintf() accepts its arguments in the array arg of type va_list, which must have been initialized by the va_start() macro (and possibly subsequent va_arg calls) from the stdarg.h header file. The vfwprintf() function does not invoke the va_end macro.

Refer to the "wprintf" function for details of the format string.

Returns the number of wide characters written or a negative number if it failed.

"Wide Character and Byte Character Stream Orientation"

"vfprintf"