Код для скрытия папки или файла с помощью программирования на языке Си?

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Я не могу скрыть файлы или папки с помощью #Include&ЛТ;Ио.ч&ГТ;,#включать<ОСН.ч&ГТ; с помощью
_chmod(FN,1,FA_SYSTEM | FA_HIDDEN | FA_RDONLY);

Что я уже пробовал:

#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<io.h>
void main()
{
	int i,test; //test for condition in c programming
	char ch,FN[20];  //fn mean file name-ch mean to choice a number in switch
	char s[]={"#FILE/FOLDER PROTECTION SOFTWARE !"};
	clrscr();
	gotoxy(14,5);
	textcolor(2);
	cprintf("_______________________________________________");
	gotoxy(14,6);
	cprintf("_______________________________________________");
	gotoxy(14,10);
	cprintf("_______________________________________________");
	gotoxy(18,8);
	textcolor(10);
	for(i=0;s[i]!='\0';i++) //to show the header which is declear in char
	{
	_setcursortype(1);
	cprintf("%c",s[i]);
	delay(50);
	sound(1500);
	delay(50);
	nosound();
	}
	textcolor(2);  // for a text color in c programming
	gotoxy(22,12);
	cprintf("1 :HIDE A FILE /FOLDER ");
	gotoxy(22,14);
	cprintf("2 :SHOW A FILE /FOLDER ");
	gotoxy(22,16);
	cprintf("3 :HELP ");

	gotoxy(10,24);
	cprintf("Designed & Developed At Nepha6ker.blogspot.com Copyright @ 2019 ");
	gotoxy(16,18);
	cprintf("       ENTER YOUR CHOICE :->> ");
	ch=getch(); //when the user press esc than it exit the program
	if(ch==27)
	exit(1);
	switch(ch)
	{
	case '1':clrscr();
	gotoxy(15,6);
	textcolor(2);
	cprintf("______________________________________________________");
	gotoxy(15,7);
	cprintf("______________________________________________________");
	gotoxy(15,12);
	cprintf("______________________________________________________");
	gotoxy(17,9);
	cprintf("ENTER THE FILE / FOLDER NAME WITH PATH !!");
	gotoxy(17,11);
	cprintf("$ : ");
	fflush(stdin);//to clear all the screen which has run when started
	gets(FN);
	test=test=_chmod(FN,1,FA_SYSTEM || FA_HIDDEN || FA_RDONLY);//chmod is command to hide the folder or file
	if(test==-1)
	{
	clrscr();
	gotoxy(19,9);
	sound(1000);
	delay(200);
	cprintf("Unable to hide file / folder ! ");
	nosound();
	}
	else
	{
	clrscr();
	gotoxy(19,9);
	cprintf("Operation executed successfully !");
	nosound();
	}

	break;
	}

геч();


}

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