getwc() function: It is used to return the next wide character from input stream.
int getwc(FILE *stream);
putwc() function: It is used to write a wide character to a file.
wint_t putwc(wchar_t ch, FILE *stream)
getwchar(): It reads a wide character from the keyboard. It is executed when a key is pressed and the pressed key is echoed to screen.
Syntax of getwchar():
putwchar(): At current cursor position, putwchar() prints a wide character to screen.
wint_t putwchar(wint_t c);