From:	"John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: <conio.h> questions
Date:	Sat, 09 May 1998 21:29:14 -0400
Organization:	Two pounds of chaos and a pinch of salt.
Lines:	82
Message-ID:	<355502EA.1B14@cs.com>
References:	<6j2u57$alk AT nnrp3 DOT farm DOT idt DOT net>
NNTP-Posting-Host:	ppp119.cs.net
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

My apologies for the previous incomplete post.

Thomas Beauchamp wrote:
> 
> Could somebody please help me by sending me a small example program of
> conio.h input/output functions?  I know that you're all thinking that
> I'm an idiot, but I would really appreciate the help.

For information on conio functions, read the libc docs ("info libc func
conio").

#include <conio.h>
#include <pc.h>     /* kbhit */
#include <ctype.h>  /* toupper */
#include <dos.h>    /* delay */

void clear_key_buffer( void )
{
    while ( kbhit() )
        getch();
}

int main( void )
{
    struct text_info ti;
    char line[100];
    float f;
    int i, x;
    char c;

    gettextinfo( &ti );  /* save previous screen state */

    clrscr();       /* clears screen */
    cprintf( "Please type a word:  " );
    cscanf( "%s", line );
    cprintf( "\n\rYou typed '%s'.\n\r", line );
    cputs( "Please type a complete line:\n\r" );
    line[0] = 100;  /* size of buffer */
    line[1] = 0;    /* length of string */
    clear_key_buffer();  /* cscanf leaves \n\r in buffer */
    cgets( line );
    cputs( "\n\rYou typed:\n\r" );
    for ( i = 0; i < line[1]; i++ )
        putch( line[i + 2] );  /* string starts at third element */
    cprintf( "\n\rPlease type a float followed by an integer:  " );
    if ( cscanf( "%f%d", &f, &x ) < 2 )
        cputs( "\n\rYou typed an invalid character.\n\r" );
    else
        cprintf( "\n\rYou entered %f and %d.\n\r", f, x );
    clear_key_buffer();
    cputs( "Type some characters, one at a time.  Press Q to stop.\n\r"
);
    for ( c = ' '; toupper( c ) != 'Q'; )
        c = getch( );
    cputs( "Now try again.\n\r" );
    for ( c = ' '; toupper( c ) != 'Q'; )
        c = getche( );
    cputs( "\n\rPress any key for color test..." );
    getch( );
    cputs( "\n\r" );
    for ( i = 0; i < 256; i++ )
    {
        textattr( i );
        cprintf( "fg = %3d     bg = %3d     blink = %d\n\r", i & 0xf, (
i >> 4 ) & 0x7, i >> 7 );
        delay( 100 );
    }
    textattr( ti.normattr );
    cputs( "This has been a test of your basic conio functions.\n\r" );
    cputs( "Have a nice day.\n\r" );
    return 0;
}  

Good luck!

-- 
---------------------------------------------------------------------
|      John M. Aldrich       |"Men rarely (if ever) manage to dream |
|       aka Fighteer I       |up a god superior to themselves. Most |
|   mailto:fighteer AT cs DOT com   |gods have the manners and morals of a |
| http://www.cs.com/fighteer |spoiled child."    - Lazarus Long     |
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