how to use bioskey()?

[lzh08]

the code is following;
#include <bios.h>
#include <stdio.h>

void main()
{
int i;

i = bioskey();
return;
}

but after compiler,the error is:
Call to undefined function 'bioskey' in function main()
*** 1 errors in Compile ***
Borland C++ 5.2 for Win32 Copyright (c) 1993, 1997 Borland
International

why?

In the directory<include>,i found the file named with bios.h.
thx.

 

[Ian Collins]

the code is following;
#include <bios.h>

Not a standard C or C++ header, try a windows group.

 

[lzh08]

ok,i have resolved it.
In bc++5.5,select the project used with right mouse,and double click
the target expert,then select the dos

 

[Salt_Peter]

ok,i have resolved it.
In bc++5.5,select the project used with right mouse,and double click
the target expert,then select the dos

void main { } is illegal in C++.
Borland, Win32 and DOS are off-topic here.

consult the faq:
http://www.parashift.com/c++-faq-lite/how-to-post.html#faq-5.8